一桩残忍凶案悄然发生在偏远的西部村寨，憨包汽修工宋老二（刘烨 饰）被警方推为首要疑凶。这让本来萍水相逢的三人：憨包汽修工宋老二、落魄古惑仔王友全（段博文 饰）、夜总会领班董小凤（张译 饰）命运彼此牵连在一起，在荒蛮西部上演了一场充满嬉笑怒骂的黑色逃杀 A brutal murder occurred quietly in the remote western village, hanbow mechanic second song (Liu Ye) as the first suspect by the police push. This would allow three people meet: hanbow mechanic, young Wang Youquan and Dick song (segment Bo ornaments), Captain Dong Xiaofeng (Zhang Yishi) fate nightclub involved with each other, in the wild west staged a black battle full of ridicule.