An unhappily married man, who doesn't know how to break up with his wife, asks a womanizing Casanova to seduce her so that she'll leave him instead. But as he witnesses how his wife gets closer to the Casanova, he begins to change the way he sees her and, soon, realizes that he's made the worst mistake any husband can make.

该剧改编自日本同名小说，是一部惊悚片，讲述一家银行的合同工偶然碰了顾客的钱后，无法回归原来的平凡日常生活的错综复杂故事。

阿莱克斯一心想要复仇，并证明有人诬陷自己杀害妹妹。在寻找犯罪真凶的过程中，他也挖掘出更多的真相。?