In China, people call men who are betrayed in love and marriage "green hats". The story tells about a middle-aged man and a young man, who faced embarrassing situations and very different life endings when their lovers were unfaithful to them. Before the young man was about to travel across the ocean to meet his girlfriend, he robbed a bank with his accomplices. Before boarding the plane, he was so ecstatic that he called his girlfriend overseas, but he got the news that his girlfriend already had someone else. When he was desperate, he kidnapped the female owner of the convenience store and confronted the police. The criminal police captain decisively replaced the female owner as a hostage. At this time, the young man unexpectedly asked the criminal police captain a question. Unexpectedly, this question just hit the soft spot of the criminal police captain. His wife had already green-hatted him because of her husband's impotence.