Desc: Mang gwai dai ha: Directed by Jeffrey Lau. With Sandra Kwan Yue Ng, Sharla Cheung, Ann Bridgewater, Suki Kwan. A police sting takes place in a haunted apartment building. The sting goes bad when a female ghost crashes the party. Lots of chase scenes involving floating heads and headless bodies.. and, oh yes.... toy helicopters. And then it gets weird...A band of Chinese elves save the day (one of them plays a mandolin).