A Hong Kong businessman (Billy Lau) invited three of his friends to stay at his house whenever the need arises. Soon, an in-debt girlfriend (Sandra Ng), a freed inmate (Shui-Fan Fung) and an exorcist (Ma Wu) all move in at the same time, which eventually lead 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.