Desc: Sik yuk sing si: Yam yan si biu: Directed by Sau-yin Ma. With Matthew Ng Ting, Sophie Chin Man Ngan, Ga Man Yeung, Hoh Kan-Yee. Hong, as a tutor, always has unbalanced of sexual fantasy. One day, he couldn't control himself and raped his student during the session. He kept going. However, the student's sister, Madam Wong, was a cop, and the rapist was brought to justice. But when he is certified as a mental patient, he is released from custody and the women are once again in danger.