The Untold Story - Sudden Vanished
- Year: 2002
- Country: Hong Kong
- Genre: Thriller, Mystery
- Studio: B&S Films Creation Works House
- Keyword:
- Director: Ho Chi-Hang
- Cast: Wayne Lai Yiu-Cheung, Fennie Yuen Kit-Ying, Michael Tao Tai-Yu, Leila Tong, Felix Lok Ying-Kwan, David Lee Wai-Sheung