当富裕的夫妇理查德和安吉拉访问马里恩和亚历克斯在腐朽的家庭，他们不同的社会和道德态度造成不安的紧张。 一个相当晚的醉酒和性竞争很快变成血腥的，因为客人成为一个unhinged攻击者的受害者。

  When wealthy couple Richard and Angela visit Marion and Alex in their decaying family home, their differing social and moral attitudes create uneasy tensions. An inharmonious evening of drunkenness and sexual rivalry soon turns bloody as the guests fall victim to an unhinged attacker.