Deric Wan stars as a kind-hearted thief who is constantly plagued by his conscience every time he has a mission. He doesn't really want to steal but he has to in order to provide for his sister, Mary. On a chance encounter, he assumes the identity of a detective, who is totally opposite in character, but bears a striking resemblance with. Problems arise as he tries to fix up the bad image Hwa Hak has with the public, his family and friends.