Reporter Yu Mong-yuen is recovering from a leg injury in his fiancee Man-wah's apartment. Bored, he looks out the rear window and observes the life of the neighbouring building. Among the tenants are a sugar-daddy and his mistress, a middle-aged man wants to marry a young girl, but she is in love with his son. Finally, she hatches a plot and makes the man agree to her marrying his son ; a sly fortune-teller ; a lively gym, a rich widow quarrels with the trainer of a gymnasium because his dog has bitten her cat ; and an opera school, a woman signs, leaning on the balcony, and a man tries to strangle her. In fact they are rehearsing an opera…… One evening, Wah is on the night shift, and Yuen watches the opera troupe rehearse to the end. Under the influence of drugs, Yu mistakenly believes that a divorced man has murdered a taxi dancer. He alerts the police, but the whole thing is nothing more than a misunderstanding.
Cheung Ying
as Yu Mong-yuen
Chow Kwun-Ling
as Man Wah
Tsi Law-Lin
as Taxi Dancer
卢敦
as Mr. Mok
Lee Hoi-Chuen
as Fortune-teller
Ma Sze-Tsang
as Conservative Father
Yung Siu-Yi
as Daughter
胡楓
as Boyfriend
Leung Sing-por
as Patron
Lai Cheuk-Cheuk
as Patron's Wife
Pak Suet-Sin
as Actress
Ng Cho-Fan
as Actor
