Fashioning himself as a priestly avenger, Robert escapes from the insane asylum and begins slashing his way through anyone who stands between him avenging the actions of his greedy uncle.

侦探雷.洛伦茨回家时发现妻子正在和小提琴教师菲利普偷情。雷冲动地绑架了菲利普，于是二人踏上了一段充满了意外启示与救赎的旅程。协奏曲是一个关于男人在充满暴力的世界中找寻到一丝宁静的故事。