改编自历时20年不懈努力侦破的“1998.9.2”惊天命案。

蔺家两姐弟看似生活无忧，但有各自的烦恼：姐姐海丽（邓婕 饰）的丈夫何春生（张国立 饰）看似老实巴交，却因一次偶然和北漂女孩秋媚好上了，他们的生活由此乱作一团； 弟弟海强（陈建斌 饰）是一名摄影师，早年已经和强势的老婆柳宴（咏梅 饰）离婚，两人却还时不时要为了工作、儿子乃至朋友的事情聚在一起讨论、拌嘴。为了好友的儿子齐建军（李昊臻 饰）及其女友廉洁（张萌 饰）的婚事两人介入其中，阴差阳错海强和廉洁发展出了一段不被周遭所接受的恋情。所有的人最终都被卷入一团乱麻之中。
前因后果，分不清乱的是这个世道，还是彼此的人心……

With his directorial debut actor Chen Jianbin walks in the footsteps of A Touch of Sin, No Man’s Land, and Black Coal, Thin Ice and offers a hard-edged mainland noir where kindness and cruelty, madness and reason, greed and humanity all struggle for dominance and the fool might not be who you think . The hook here is Chen’s amazing performance as the simple, slightly crude Latioazi, a goat farmer who has a son in jail. When a young mentally handicapped man follows him home one day and enters his life, it sets off a blaze and a chain of events follows, which bares China’s class divide raw. His random act of reluctant kindness invites a parade of strangers and grifters all intent on draining Latioazi of what little he has.

A man must attempt to clear his name after a theatre puts on a play that accuses him of committing a 30-year-old murder.