Conspirators

The Detective is a series of Hong Kong mystery thriller film directed by Oxide Pang, and starring Aaron Kwok as a private investigator.
Chen Tan, a private detective in Thailand, travels to Malaysia following a series of clues found in a photo. There he searches for a man called Chai, who might help reveal the truths behind the murder of his parents 30 years ago. Chen finds Zheng, a Malaysian detective born in China. Together they meet Chai's daughter, Zi-Wei who could hold the key to cracking the case.