Yuk chung lung

"Dragon in Jail" is a 1990 Hong Kong action film starring Andy Lau as Henry Tse, a juvenile delinquent who tries to escape life in the ghetto. After releasing from jail, Henry is bullied by a local tyrant, Ma Chao-wei, but finds an unlikely ally in his friendship with a rich jail mate, Wayne (Kenny Ho), who later becomes a lawyer and helps Henry's pregnant wife Winnie (Gigi Lai) when she is raped and killed.