Desc: Niu ji za pai jun: Directed by Wellson Chin. With Carina Lau, Kara Ying Hung Wai, Mars, Clarence Fok. Sing is an ex-con who's supposed to dig up the buried loot of his three still-jailed buddies, but when he gets to it, he finds that the treasure chest is full of rocks. The other three are convinced that Sing stole the goods for himself.