Detective Investigation Files Season 3 Episode 21 Episode 21 ( Air Date 1997-09-29 ) Genre Mystery, Crime, Drama category. Overview "After investigation, it is certain that the dead man is FAY, YUNG's brother, YUNG is in deep grief, He works round the clock, hoping he can find the killer, He recalls that FAY has fought with YIP WAI, TIN finds MAR HO HING, who is believed to be the last one seeing FAY before he was killed, HING admits that she met FAY but nothing was special, She only informed FAY that HAY wanted to leave him, YUNG's father and younger sister come. They are also very sad. From the record on blood type, YI discovers that HAY's son is not HOI's. Instead FAY may be his father. On the other hand, LUNG finds a video tape shot by FAY. She gives it to YUNG.".
Detective Investigation Files Season 3 Episode 21 Episode 21
- Watch: Detective Investigation Files Season 3 Episode 21 Episode 21 on CWR-CRB
- Stars: Louis Koo, Jessica Hsuan, Sunny Chan Kam-Hung, Charmaine Sheh Sze-Man, Lee San-San, Maggie Shiu Mei-Kei, Andy Tai Chi-Wai, Samuel Kwok Fung, Edmond So Chi-Wai, Eileen Yeow, Timothy Cheng Chi-Sing, Anne Heung Hoi-Lam, Catherine Chau, Edward Mok, Henry Lo, Cecilia So Yan-Chee, Safina Lam
- Director: Poon Ka-Tak
