In a dilapidated apartment block, former actor Chin Siu-ho, haunted by his past, moves in with a plan to end his life. However, his attempt is interrupted by a series of supernatural occurrences. The building is home to a variety of unusual inhabitants, including a vampire hunter named Yau, a mysterious seamstress Auntie Mui, and a pair of sinister twin spirits. As Chin learns more about his neighbors, he discovers that the building harbors dark forces that prey on the weak and vulnerable.

Amidst the growing chaos, Chin is pulled into a struggle for survival. With the building's history of haunting and malevolent spirits resurfacing, he must confront the forces at play to prevent greater disaster. His journey exposes him to the lingering grief and unresolved sins of those around him.