Poor Chang Lu - her husband Vimin is a cruel man, threatening to kill her beloved pet dog if she doesn't do everything he demands. Then Vimin brings home Lam Ting Ting, a tempremental singer, to keep her as a mistress. San, a man on the run from a gang and police, is sheltered by Chang Lu. A strange quadrangle develops, and Chang Lu is charged with a crime.
The remainder of the film focusses on the trial of Chang Lu and San.