Teerasit Boonyapison

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.

Mona's mother died, seemingly from spontaneous human combustion. She became acquainted with a nurse named Ploy, whose mother also died from the same cause. The two women embark on a quest to find out the truths about their mothers' death with the aid of an ambitious news reporter.