All of a Sudden

All of a Sudden is a crime drama and romance involving a complex web of betrayal and revenge. The story follows a widower who seeks vengeance against a man who had an affair with his wife before her apparent suicide. The situation becomes more complicated when the widower begins a romantic relationship with the other man's wife, eventually leading to the revelation of the truth.

Produced by Nam Yin Production Co., Ltd. in Hong Kong, the film was directed by Herman Yau. It is the third of 16 films he directed, following Ebola Syndrome and preceding The Legend Is Born: Ip Man. The screenplay was written by Chau Ting, and the movie was produced by Victor Yeung, Jenny Wong, and Anita Tong. The main cast features Irene Wan as Ho-Yee and Simon Yam as Tsui Chin-Tung, alongside Alfred Cheung Kin-Ting, Dayo Wong, Lam Chiu-Wing, and Rico Chung Kai-Cheong.

The film has received moderate reception from audiences, holding a 6.2 rating on IMDb based on 226 votes and a 6 rating on TMDB from 25 votes.