In decade years later, The eerie confines of St. Angelo's Interior Design and Architectural Company.

The story commences with the mysterious nature of the architectural office building, which has been surrounded by controversy for a decade. The haunting begins when a woman and her daughter leave the building, only for the mother to be brutally murdered, witnessed by her terrified daughter.

The plot centers on the haunted office building, where numerous victims fall prey to unknown spirits and an elusive serial killer. Martin Holloway, a junior architect, suspected his boss, Architect Levan, of being the mastermind behind the murders. Seeking help, Martin confides in his colleague Niel and his girlfriend Melissa, a journalist. Together, they decide to investigate and expose the potential killer within the company.

As the trio delves deeper into the mystery, they infiltrate the office under the guise of employees. However, their efforts prove futile as no one shares any information about the strange occurrences.

The haunting spirits strike again at 3 AM, claiming another victim, and Martin's suspicions intensify. Simultaneously, his personal life takes a turbulent turn when he discovers Melissa's secret affair with Niel was her ex-boyfriend after they broke him. Out of betrayal, Martin walks out at them.

As the supernatural events escalate, Architect Levan becomes a victim himself, found dead in his car. Martin, sensing danger, becomes trapped in an elevator and questions whether the culprit is a human or something more sinister. Echoes and apparitions manifest, pushing Martin to the brink of insanity.

In the climax, Martin's sanity further deteriorates, leading to a shocking revelation. He becomes the embodiment of the horror within the office building, brutally murdering Niel and Melissa in a fit of madness. Martin's dark past is exposed as he reveals himself as the true killer who is responsible for the deaths within the company. Martin is now alone, grieving over the lifeless body of Melissa as she died in his arms after killing her, and realizes the depths of his depravity.

Another gripping tale of supernatural occurrences and family struggles within the haunted penthouse. The family, consisting of teenage siblings Angelo and Angela, along with their mother Rosie and younger brother Nino moves into the penthouse under the property caretaker Clayton took care of them for their rent.

The whole family experiences unsettling events since moving into the renovated but eerie penthouse.

The plot takes a dark turn when the family discovers a mysterious door leading to the basement during a Thanksgiving dinner. Inside, they find a vintage mirror that becomes the focal point of a supernatural ritual. The family inadvertently summons spirits, leading to a series of haunting incidents within the penthouse.

Angela, dealing with her unfaithful boyfriend Lance who adds to the strained relationship, finds solace in her family and confides in her mother Rosie. Meanwhile, Angelo has his encounters with Lance, leading to a serious confrontation with Lance over his betrayal of Angela.

The family seeks help from Trixie, a psychic friend, to understand the nature of the haunting. As the haunting intensifies, the family decides to dispose of the mirror, believing it to be the source of the evil spirits. Angelo and Trixie embark on a mission to get rid of the mirror by dumping it in a river.

Rosie seeks the assistance of a priest to bless the penthouse and banish the spirits.

Despite their efforts, the haunting persists, and the family discovers the tragic history of the penthouse. Blue, Clayton's servant, witnesses a murder plot involving one of the previous residents, Leslie, who was abused and killed.

Angelo and Angela, determined to uncover the truth, visit an old friend, Manilyn, who pays tribute to Leslie, an actress from the 80s. As they reacted to the old photo album.

It turns out, that Angelo recognizes Leslie from a DVD featuring the horror movie "Love Is Fear to Die." realizing they lived in Leslie's luxury penthouse. The second part rewinds, promising to unravel the mystery behind the haunting of the eerie penthouse.

In the mid-80s, during the filming of the horror slasher film "Love Is Fear to Die." The story revolves around actress Leslie Turner who played the role of "Fiona" and the unsettling events that follow the traumatic experiences on the film set.

After a disturbing incident involving actor Craig accidentally scaring Leslie during a scene, tensions rise, leading to a confrontation with director Cyrus Matthews yells at him for the importance of not fear in real life. Leslie has a panic attack, and Cyrus tries to calm her down.

Craig resigns from his acting career and becomes the first victim of an unknown serial killer known as Screamer, wearing a menacing mask.

The premiere of "Love Is Fear to Die" takes a horrifying turn as the audience witnesses the actual deaths of Craig and his fiancée Vanessa on-screen. Haunted by the events, Leslie faces skepticism from the audience, misunderstanding the nature of the footage.

As crime scene investigators discover the bodies of Craig and Vanessa, Leslie, affected by the traumatic events, returns to her rooftop penthouse. The spirits of Craig and Vanessa reach out to her, intensifying the haunting.

Meanwhile, the President of Moonshine Studios, Dexter Harris, contacts director Cyrus to discuss the recent murders, leading to Cyrus traveling to Hollywood.

The remaining cast and crew, including actors Christina Roberts, Jenny Lawson, Alicia Sanchez, Evan Monroe, Rodel Chen, and Justin Robbins, grapple with the aftermath of the halted movie premiere. Christina's curiosity about the haunting spirits becomes a focal point, and the group gathers at Leslie's penthouse, where they explore the mysterious events surrounding the slasher film.

The serial killer Screamer resurfaces, targeting Leslie's bodyguard and Justin, heightening the suspense. Crime investigator Tyron Kendall becomes involved as Leslie connects the murders to a picture of her mother, Nerissa Turner. The investigation reveals a systematic targeting of the cast and crew based on the script lines of "Love Is Fear to Die."

Jenny becomes the fourth victim, falling prey to Screamer's pranks and meeting a gruesome end by drowning her in the bathtub and stabbing her neck. Marius Stevens, Christina's bodyguard, faces a brutal attack in his apartment from the penthouse and Marius gets stabbed in the stomach, yet bludgeoned and shredded in his head by the killer with a blender, further escalating the danger. The paranoia intensifies as Christina, Leslie, and Tyron delve deeper into the investigation, discovering the link between the murders and Nerissa's death.

As the group is lured into a party in Dexter Harris's apartment, the confrontation with Screamer ensues. The penthouse becomes a battleground as the killer targets different individuals, leading to a series of intense struggles and shocking deaths. The revelation of Screamer's identity adds another layer of horror, connecting the events to Leslie's family history.

Evelyn Monroe, Leslie's manager and an entertainment reporter, sacrifices herself to save Leslie and Evan. An inflicted war between Evelyn and the killer in the kitchen room, shootout at him with a shotgun, But Evelyn gets impaled in the chest by a broken wooden and killed by the killer.

The rooftop chase culminates in a shocking confrontation, revealing Cyrus as the true identity of Screamer. The twisted family history unfolds, with Dexter meeting a cruel fate at the hands of his son as he slits his own father's throat in front of Leslie.

At the beginning of the next 3 AM night, Leslie's desperate struggle against Cyrus ends tragically as Evan, attempting to protect her, becomes another victim of Cyrus's violence by stabbing him in the back and stomach multiple times.

In the climax, Leslie becomes the last victim as she gets sexually assaulted and terrorized by Cyrus, resulting in her ultimate demise by being bludgeoned in her head. Cyrus is obsessed as he smells her beautiness and rapes her.

Shockingly, Leslie's lifeless body was discarded and buried by Cyrus in the construction area of the penthouse.

Cyrus burns the evidence of his costume, including the mask of the killer known as Screamer, ensuring that no one would suspect him as the perpetrator of the crimes. He successfully escapes the consequences of his actions.

Angelo and Angela, along with their family, receive information from the police regarding Leslie's death 22 years ago.

During the investigation on the ground floor of the penthouse, digging up on the ground area. The authorities discover Leslie's decomposed skeleton corpse has been found, leaving Angelo and Angela in shock.

Subsequently, they proceed with the burial of Leslie's grave, and the Ramirez family pays a visit to honor her memory. During this time, Clayton reappears and encounters them. He expresses concern about the events surrounding Leslie's death and overhears their conversation about visiting Leslie's grave. Angelo notices Clayton's true intentions and questions him for the truth about what happened to Leslie's death. But Clayton asserts that he was proven to be innocent. The family then leaves for home, leaving behind the mysteries and unresolved aspects of Leslie's tragic demise.

The next day, Nino wakes up in the morning, but the haunting spirits return. Along with Angelo, Angela, and Rosie, they are terrorized and tormented by the spirits in Nino's room, causing chaos. The ghostly apparition of Dexter Harris appears and instills fear in them. However, Angelo intervenes and dispels the spirit by throwing a rosary, and vanishes him. They packed their belongings and left the old penthouse. Before departing, Angelo and Angela come across another mirror that foretells the demise of their family. Troubled by this vision, the family decides to move into Trixie's house for safety.

Later that night, Lance sneaks back to the old penthouse, unaware that he is being watched by Clayton and his servant Blue. They enter the penthouse, their intentions unknown to Angelo and Angela's family. At Trixie's house, the spirits relentlessly follow them, causing havoc with the sound of broken glass. The supernatural presence draws near to them, creating an atmosphere of fear and tension. However, Angela takes decisive action, putting an end to the disturbance by stomping on the broken glass, thereby saving her family's lives.

The family moves into another apartment, and Trixie persuades Angelo to put an end to all the chaos at the penthouse. In a poignant moment, Angelo and Trixie share a kiss, realizing their growing feelings for each other. Despite this, Angelo decides to return to their old penthouse, leaving the apartment. His sister, Angela, insists on accompanying him. Concerned for her safety, Angelo approaches her, expressing the dangers involved. However, Angela pleads with him, assuring him that he will never be alone, and they join together to face all the chaos of mysterious spirits.

Joining forces, Angelo and Angela return to the old penthouse in the next 3 AM of the night. They went back to the basement where the mirror was once again found. The mirror reveals a vision of Leslie's spirit appearing and holding their hands, unveiling the tragic fate of Leslie's murder. In the vision, they learn that the serial killer Cyrus and the old caretaker Clayton are the same person, as he grew up to become the murderer. Realizing that Clayton, the penthouse caretaker, is the one behind everything, he surprises them, knocks them unconscious, and proceeds to kidnap them.

Angelo and Angela are abducted by the caretaker Clayton, who reveals his true identity to be Cyrus as he gets older. Cyrus discloses that he was a former movie director in the entertainment film industry but was terminated after escaping from his crimes. The siblings now find themselves at the mercy of this twisted figure from their past. Cyrus admits to orchestrating the murders out of jealousy, driven by resentment towards the fame of younger and more attractive individuals who tarnished his name. He reveals a dark cycle of childhood abuse within his own family, explaining that he murdered Leslie out of an obsessive love for her. Angelo and Angela learn the grim truth that none of the previous tenants survived the killing sprees at the old penthouse. With sinister intentions toward Lance, who is brought in and gagged in a corner room, Cyrus proceeds to bludgeon Lance to death in front of Angelo and Angela in shock and horror at the gruesome scene unfolding before them.

Rosie attempts to wake Trixie, urgently informing her about the whereabouts of Angelo and Angela.

Angelo and Angela get tortured by Cyrus. Motivated by his twisted jealousy, Cyrus inflicts punishment upon them, brutally unleashing his wickedness. The siblings endure the torment as Rosie seeks help, desperately trying to rescue them from this dire predicament.

Cyrus continues his obsessive behavior towards Angela's beauty, inducing fear in her as he attempts to assault her, reminiscent of his actions towards Leslie. Angelo intervenes to prevent harm to his sister, making a bold decision. Angelo, in an act of sacrifice, implores Cyrus to end his life and directs the violence towards himself. Cyrus beats up and rapes Angelo in a brutal disturbance, all in an attempt to put an end to the twisted events unfolding. The servant, Blue, witnesses Cyrus's malevolent actions, recalling the murder of Leslie from long ago. Blue intervenes to prevent Cyrus from attempting to harm Angelo, but Cyrus retaliates by stabbing Blue, tragically resulting in his death. Fueled by betrayal, Cyrus ends Blue's life. However, Angelo retaliates, beating up Cyrus and rescuing Angela before making their escape.

The pursuit commences at this point. Trixie, Rosie, and Nino rushed to assist Angelo and Angela. But, Trixie was violently attacked, smashed her head against the fireplace, and killed by Cyrus, compelling them to leave her behind. Angela, Angelo, Rosie, and Nino attempted to escape but found themselves trapped. Despite Rosie and Angelo putting up a fight, out of desperate plea, Rosie urged Angela to run for her life. Angelo continues to brutal fight with him later, Cyrus stabs him in the guts in front of Angela, Rosie, and Nino look in shock and mourn him, leading Rosie to pour out her anger at Cyrus, later stabbing Rosie's chest and the heart. Angela gets stabbed and murdered by Cyrus. The tragic outcome saw Angelo, Rosie, and Angela succumbing to Cyrus's violence.

Nino, the sole witness to his family's demise, finds himself nearly targeted by Cyrus. As the last survivor, Nino is pursued by Cyrus into the attic under the basement. There, Cyrus hums a lullaby, echoing the spirits of Leslie, Evan, Rodel, Christina, and others, the same lullaby heard in the first episode of "Echo"—in an attempt to lure the terrified Nino. In a dying breath, Angelo, severely wounded, defeats Cyrus by slashing in the chest and killing him with a samurai sword, sacrificing himself to save his brother's life. Despite Cyrus's demise, the haunting lullaby continues, leaving Nino to witness the eerie conclusion, ultimately leading to his demise. Nino mourns and expresses sorrow for Angelo's stab wounds. In Angelo's final moments, he imparts some last words to Nino: "You've got to be a good boy, take care of yourself, and don't let them turn you into someone like me." Nino promises his brother that he will fulfill his wishes. Afterwards, Angelo dies in Nino's arms.

After the tragic fate of his mother and siblings concludes, it serves as the epilogue to "Mirror," the interlude to "Luxury," and the prologue to "Echo." It turns out that Nino survived and became an orphan. Placed with an adoption agency, he undergoes a changing his name from Nino to Martin (the same Martin in "Echo"). Martin is raised and adopted by therapist Dr. Jennylyn Holloway.

As he grows up, Martin leaves for Los Angeles, California, where he attends college. He dedicates five years to pursuing a degree in Architecture. Upon graduation, he returns to his hometown pays tribute to Dr. Jennylyn's red-bidden illness, and passes away, leaving his inheritance. Martin is now a junior architect who works at St. Angelo's Interior Design and Architectural Company. It is revealed that Leslie's old penthouse, his childhood home, was demolished, and in its place, an architectural office building was erected 10 years ago. The spirits haunting the St. Angelo Interior Design and Architectural Company are the same ghosts that once haunted Nino/Martin's old residence.

As Nino/Martin drives with Melissa's body to his brother Angelo's dream house, a scene previously seen in "Mirror," he is still plagued by guilt.

Martin becomes delusional, convincing himself that his mother Rosie, siblings Angelo and Angela, and his girlfriend Melissa are still alive. He pretends to have "Thanksgiving" dinner with his entire family again. Angelo and Angela try to reason with Martin, telling him that he can't hold onto them like this. It turns out Nino/Martin is carrying on the entire conversation in his head towards Rosie, Angelo, and Angela, who are now spirits after being murdered, feeling very lonely, and talking to himself. Melissa is truly dead as she sits in the chair. So the spirits of Angelo and Angela hug Nino and continue to enjoy their dinner.

At the end, Martin imagines that he hears Melissa whispering his name. As he leans in closer, Melissa suddenly awakens from her unconscious state and attacks, ultimately killing Martin.