Pharmaceutical company employee Ching Sum has an overbearing wife, Ko Lai-sum. In order not to fight head-on with her, he has been avoiding her in their seven years of marriage. Lai-sum, however, has never stopped watching his move, as she always believes he is fooling around behind her back. One day, Ching Sum is caught red-handed in Shenzhen by Lai-sum, who proposes to divorce him!