Wai Kit's secretary, Kitty, is having her birthday. Her colleagues plan to go to karaoke for celebration. Kam On is first rejected by his colleagues but with Wai Kit's persuasion, he is invited for the party. Meanwhile, Kam On's wife, Ah Kuen, gets back from Canada. She finds Kam On has not been back very late at night. As she sees Kam On get drunk, she is angry with him. Ching Chun comes to visit Kam On and meets Ah Kuen. Ah Man and Amah Hung afraid that Ah Kuen will be mad with Ching Chun. Fortunately, Ah Kuen appreciates Ching Chun taking care Kam On.