Based on the novel by Kazumi Takahashi. - Murase is a bodyguard in a yakuza group. Ochiai is a police officer who once was a student activist. When they meet, they are surprised how identical they look. They decide to trade places with each other. Murase investigates the case he was involved in. Ochiai feels rather comfortable in the world of yakuza. They begin to feel sympathy for each other... 　　译文(2): 改编自高桥和巳小说。村濑是日本黑帮的保镖。Ochiai 是一名警官，曾经是一名学生活动家。当他们相遇的时候，他们会惊讶地发现他们看起来是那么的相似。他们决定互相交换位置。Murase 调查他所涉及的案件。Ochiai 觉得在黑帮的世界里很舒服。他们开始同情对方。