A Hong Kong social worker (Billy Lau) invited three of his clients to stay at his house whenever the need arises. Soon, an in-debt lady friend (Sandra Ng), a freed inmate (Shui-Fan Fung), and an aspiring exorcist (Ma Wu) all move in at his place simultaneously, which eventually leads to commotion and disagreements of the living arrangements. However, the three must ultimately work together to save their friend from an evil ghost that has possessed his body.