故事发生在瑞典，弗兰克（乔尔·金纳曼 Joel Kinnaman 饰）所住的公寓发生了一起入室抢劫案，弗兰克出于自卫，杀死了歹徒，一下子，他因为他的身份而被推到了舆论的风口浪尖之顶。无奈之下，他只得带着家人找到了特警约翰（雅克布·伊库伦德 Jacob Eklund 饰）向他求助。 那边厢，黑帮老大怀疑弗兰克是警方卧底，于是找到了和弗兰克有过合作的商人赛斯（延斯·赫尔腾 Jens Hultén 饰），逼问他弗兰克的下落，想要将他除之而后快。与此同时，弗兰克也受到了当局的威胁，要求他接受不合理的条约，否则就要令他成为国际通缉犯。
The story revolves around renowned orchestra conductor Thibaut. When he’s diagnosed with Leukaemia, he sets out in search of a compatible donor for a bone marrow transplant. He subsequently discovers that he’s adopted and that he has an older brother in the North. The latter is an office worker, but he also plays trombone in a local brass band which is soon to be dismantled. Ag...
