Festivities take a back seat as DI Parker investigates the murder of a podcaster. She had been probing the disappearance of a child and claimed to have found new evidence. The missing child has haunted Commissioner Patterson for years.

该片聚焦牙买加人和他们在伦敦的生活，讲述1970、80年代，一个名叫D的牙买加黑人青年在充斥着枪击、毒品贩卖的街区长大，从小因为哥哥被枪杀而深受伤害。就在D因为音乐而眼看要脱离犯罪生活时，他遇上了杀死哥哥的男子，导致他与伦敦一名无恶不作的黑帮头子Rico杠上了……