Lam Yuen Chi (Kevin Cheng Ka-Wing) is a good doctor, and he and his wife Lau Sin (Rebecca Zhu Chen-Li) and five-year-old son Sze Long (Wong Chi-Son) have a happy family of three, and the well-off family lives in a dull family. One day, Yuen Chi attends a friend’s birthday party, after a one-night stand drunk, the film accidentally catches up with the lover woman Fong Yu (Dada Chan Ching), Fong Yu is beaten by her ex-boyfriend and is traumatized physically and mentally, she suffers from claustrophobia, so Yuen Chi is very sympathetic to her. Yuen Chi treats Fong Yu carefully, Fong Yu feels that Yuen Chi is an extinct good man