"Infernal Affairs III" is the final installment in the Infernal Affairs trilogy, directed by Andrew Lau and Alan Mak. The film continues the story of undercover cop Chan Wing-yan and mole Lau Kin-ming, exploring the aftermath of the events from the previous films. It delves into themes of loyalty, betrayal, and the psychological toll of living a double life. Set in Hong Kong, the narrative unfolds with a complex web of deception as both characters face new challenges. The film features a blend of action and drama, highlighting the moral dilemmas faced by those on both sides of the law.