Bad Blood (US King of Triads) is a 2010 martial arts-crime film written, produced and directed by Dennis Law. The film features an ensemble cast that includes Simon Yam, Bernice Liu and Andy On. Bad Blood centers on a Triad gang as the members plot and scheme against each other to become the gang's new leader, after the death of their boss. The film was released in Hong Kong on 21 January 2010.

Plot

The film begins with escaping prisoners Funky (Simon Yam), Calf (Andy On), Hung (Ken Lo), Kong (Xiong Xin Xin) and Andy Lok (Cheung Siu-fai) on the run from several Chinese (People's Armed Police) officers somewhere in China. Though Funky and his crew manage to fight off the guards, he and Andy Lok the crime boss of their gang get separated with the others while protecting something very valuable to Mr Lok's company. As the others reach their escape meeting an elderly gang ally named Zen, they realize Funky and Andy Lok are still trying to catch up. Just as Andy Lok tries to make a last-ditch attempt to escape he is hit by a truck which was actually part of a trap by the PAP officers and is captured, while Funky hides in the bushes apparently foreseeing it coming.