昔日的重量级拳击冠军乔治（迈克尔?加?怀特 饰）在俄罗斯拍摄广告度日，某天他的家被人闯入后放置了大量毒品，于是乔治因贩毒入狱。这场陷害的幕后主使是俄罗斯当地的黑拳界

《伦敦黑沼》腐败的伦敦警察帕克打算勒索神秘的有钱人科索，没想到一场简单的勒索演变成为伦敦城内大型犯罪案件。帕克该如何应对千变万化的局面……

The story follows a struggling young couple chasing the American dream only to realize their worst nightmare when they discover a demonic spirit in their new home. Mammon is the biblical word for the worship of wealth, and the couple discover that getting rich can come at a hefty price.