Lady Cop & Papa Crook 2008

John Fok (Eason Chan) is the kingpin of illegal red oil in Greater China. When an oil tanker explodes accidentally, he becomes the focus of investigation by Hong Kong and Mainland Chinese police and is forced to halt his business to wait things out. While his business rivals start closing in, a member of his household is planning to betray him. On the surface, John seems totally helpless, but in reality, he's been staging a major comeback for months. Just as he is finally ready to turn his fortune around, however, his only son is kidnapped!

Senior Inspector Molline Szeto (Sammi Cheng) is the rising star in the police force, who is well praised for busting crime with her characteristic sangfroid and precision. However, in matters of love, she is totally at wit's end. After dating the same man for more than ten years with no likely prospect of an imminent wedding, she determines to cut the knot once and for all, before she becomes too old for childbirth. Poised at the crossroad of her life, she is thrilled to be assigned to investigate the kidnap of John's son.

John dispatches his whole gang to ferret out his son's whereabouts, only to find out that his rivals are redeploying people in China to assail him. Just when he is about to order an all-out fightback, Molline suddenly arrives with her team to garrison at his house. Spurning her at first, he soon finds her critical analysis of the situation at hand both apt and useful. An unlikely cooperation between cops and crooks thus ensues, leading to conflicts and clashes galore at every step till the very end.