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 br 　　一群做房屋洁净工的伴侣此刻一间旧平房里工作 后来大屋发觉平房里住着报仇的魂灵 大屋所有人总必须为畴昔的罪孽支出代价