艾德（杰西·普莱蒙 Jesse Plemons 饰）是一名在肉铺工作的屠夫，深爱着身为理发师的妻子佩吉（克斯汀·邓斯特 Kirsten Dunst 饰），艾德最大的愿望，就是佩吉能为他生一个可爱的孩子，组成幸福的三人家庭，可是佩吉对此的态度却非常暧昧。 某日，佩吉驾车行驶在公路上，撞到了一名傻站在路中央的陌生男子，尽管该男子并未死亡，但佩吉还是将其锁进了后车厢，带回了家囚禁在地下室中。让佩吉没有想到的是，这个男人并不是普通人，他的身份竟然是当地最大的黑道家族格哈特家的公子哥雷（基南·卡尔金 Kieran Culkin 饰）。格哈特家正面临着前所未有的危机，小儿子雷的失踪，治安官卢（帕特里克·威尔森 Patrick Wilson 饰）的步步紧逼，一家之主奥托（迈克尔·霍根 Michael Hogan 饰）的重病，这家人宛如被绷到极致的琴弦，濒临崩溃的边缘。
自称自由职业者的时多骏太郎（松本润 饰）终日无所事事，四处闲逛，间或勾引人妻玩乐。某天，他在和不伦对象约会时遭到侦探偷拍，搅了他的桃花局，却也借此机缘盲打误撞加入了干练女性藤崎瞳子（松岛菜菜子 饰）经营的北品川Lucky侦探社。这里聚集着旭淳平（大泉洋 饰）、新田辉（瑛太 饰）、水野飞鸟（仲里依纱 饰）等语多机锋、个性张扬且充满活力的青年侦探。 因之前的桃色事件，骏太郎和新田成为一对意见和办案风格完全相左的冤家，而经常好心办坏事的淳平又令一桩桩案子的解决过程充满不确定。没有故作深沉的老练面孔，只有充满活力的全速冲刺，幸运七人组迸发出激烈的火花……
James Purefoy stars as William Travers, a criminal barrister who is recovering from a traumatic series of events that have shaken his belief in the legal system. On the surface, Travers is a picture of success; an accomplished criminal barrister happily living with his wife (played by Dervla Kirwan) in rural Suffolk. However, Travers is still recovering from events in his past when he is drawn into a case that involves his old friend Martin Newall (Nathaniel Parker), who faces conspiracy and murder charges while at the same time being investigated by a vicious and vengeful detective DS Mark Wenborn (Creed Miles). The five-part series from acclaimed writer Anthony Horowitz (Collision, Foyle's War) is a story of friendship, conspiracy, betrayal and murder as well as a critical look at the way the legal system operates.
With Lidsay and Bobby's help, Jimmy defends his personal friend, dentist Henry Olson, when he is tried for murdering a woman who was fount dead in his chair. Hostile ADA Richard Bay tries to prove the two were having an affair, when in fact their relationship was a lot more complicated than he could possibly imagine. Meanwhile, decapitator George Vogleman returns, asking for Ellenor's help when his co-op serves him with a eviction notice.
