Ulterior Motive is a 2015 Chinese action thriller film directed by cinematographer Arthur Wong and starring Gordon Lam, Qin Lan, Simon Yam, Archie Kao and Liu Wei.

[1][2] Originally living a happy and stable life, things have become clouded for rich heiress Ye Shuang (Qin Lan) after the unexpected disappearance of her husband Ling Feng (Archie Kao) and daughter.

After consulting with her father Ye Cheng (Simon Yam), Shuang decides to call the police, where she re-encounters her ex-boyfriend, Yao Jie (Gordon Lam).

During the investigation process, Jie finds this million-dollar ransom kidnapping case to be a misty mystery.

At this time, clues from a murder case that took place 20 years ago begins to surface.