A group of friends working as house cleaners are doing their jobs in an old bungalow. Later they find out that the bungalow is inhabited by a spirit of vengeance, and all of them will have to pay for their past sins. 　　一群做房屋清潔工的朋友正在一間舊平房里工作。后來(lái)他們發(fā)現(xiàn)平房里住著復(fù)仇的靈魂，他們所有人都必須為過(guò)去的罪孽付出代價(jià)。