Sing-yuen Chung

Film crews in Thailand are hit with a strike by the male and female leads and the producer absconding with the money. Driven to the brink of desperation, the low-level crew members and perennial supporting actors decide to take hardcore measures to save themselves and complete the film without any lead actors or funding.

The tenants of a seedy rooming house in Hong Kong think they're seeing a vengeful ghost when a strange girl arrives claiming to be the twin sister of a missing occupant. Wracked by guilt, they begin to die one by one, and the detective investigating their apparent suicides discovers that whatever karma people give out comes back to them... twofold.