Joy（唐·弗兰奇 Dawn French 饰）每天都小心的呵护着自己的玩具娃娃，并坚信有一天他会成为自己真正的孩子。怪异的盲人老头Lomax独自住在一所大房子里，有着古怪的收藏嗜好。失意的独手小丑Jelly专为儿童表演节目，但只会表演一个节目。侏儒Robert暗恋剧团女主角，却总遭到众人的捉弄。心智不成熟的David（史蒂夫·佩姆伯顿 Steve Pemberton 饰）是个杀手文化狂热者，痴迷于血腥的游戏，母亲间不惜一切代价保护着不谙世事的儿子。
这个五个来自不列颠的不同地方的人收到了一封同样的恐吓信，上面写着：“我知道你做过什么”。这几个人都有着不可告人的秘密，而未知的来信是否会将他们联系到一起，真相能否被揭开？
Milan, 2030; where only eight years earlier the independent global spy agency Citadel was wiped out by Manticore, the powerful enemy syndicate that manipulates the world from the shadows. Since then, Diana Cavalieri (who is an undercover Citadel agent) is alone, trapped behind enemy lines as a mole in Manticore. When Diana finally sees a way out and the chance to disappear forever, her only option is to trust the most unexpected ally, Edo Zani, heir of Manticore Italy, son to the head of the evil syndicate's Italian unit; who just so happens to be vying for Manticore's leadership against other European families.
