TENN Kong-Hui is a private detective who uses people's shady pasts to blackmail them. Tai-Giok is a secretary to a steel company's chairman, and a dangerous character. When she and Kong-Hui break up, he begins collecting evidence against her, and in the process unearths the dirty secrets of the people associated with her. One day, Kong-Hui is found dead in his apartment. There are five suspects but all of them have alibis. Just when the police seem to have hit a dead end, a sixth suspect emerges….

After the success of May 13th, Night of Sorrow (1965), LIN Tuan-Chiu adapted a Japanese film into this gripping detective mystery of love affairs, greed and murder However, LIN was not satisfied with the finished film, so it never received a theatrical release. But its' complicated relationships in a modern society, and its riveting plot twists, still resonate today. All aspects from the characters, performances, costume and makeup to production design is well-executed, and the elaborate interior sets, expressionistic lighting and smooth jazz soundtrack turn 1960's Taipei into an exciting, bourgeois metropolis.