LAN uses town gas to kill herself. Though she is saved, she is in a deep comatose and has little chance to wake up. As LAN’s keys are lost, YUNG suspects that LAN was murdered instead of committing suicide. He also finds that WING tries to find something in LAN's house. KUEN gives the ox to the police. It contains a letter and a photograph stating that WING was all right in Singapore. However it is found that the letter was written by WING. The lost model is found in WING's house. The police also discover that WING makes frequent donations to St. Maria's Church. WING is questioned but no further information can be obtained. He is set free. The police keep an eye on WING and find that WING asks his girlfriend YAN to take money and flowers to the church. Suddenly WING reports to the police that he was the killer of LEUNG and LAN. He did so as he hated LEUNG who wanted-to take the role of his father.… ...