《好好先生》影片讲述的是看似衣食无忧的阿伦，在面对婚姻生活事业机遇等方面，都提现了前所未有的窘迫人生。阿伦的多方面生活都似乎走到了瓶颈，不仅充满着诸多限制，阿伦的脑袋也充满了无限烦恼，面对一成不变的生活，阿伦度过了三年，而这一切的起因都由源于阿伦的女朋友弃他而去投入了别人的怀抱

皮特作为阿伦的好朋友，想要尽可能把阿伦拉回正常的生活，但是阿伦仍然不听劝阻，像一个隐居人面对一切的好意都拒绝关门谢客。阿伦由于自己的过失错过了皮特的订婚晚会，他决定再次改变自己，在参加一档真人秀节目时，他的生活陷入了更大的麻烦，经常会遇到一些令他难以理解的请求，在这段期间他也为了配合真人秀节目而参与了课程和培训，通过这些有趣的生活让他的性格逐渐改变，生活也逐渐变得幸福正常。

The film "Mr. Nice Man" tells the story of Allen, who seems to have no worries about food and clothing. In the face of marriage, career opportunities and other aspects, he has experienced unprecedented embarrassment in his life. Allen's life seems to have reached a bottleneck in many aspects. Not only is it full of restrictions, but Allen's head is also full of infinite troubles. Facing the same life, Allen has spent three years, and all of this is caused by Yu Allen's girlfriend abandoned him and went into the arms of others.

As a good friend of Allen, Pete wants to draw Allen Returning to a normal life, but Allen still refused to listen to dissuasion, like a hermit who refused to close the door to thank guests in the face of all kindness. Allen missed Pete's engagement party due to his own fault. He decided to change himself again. When he participated in a reality show, his life got into more trouble, and he often encountered some incomprehensible requests. During this period, he also participated in courses and trainings in order to cooperate with the reality show. Through these interesting lives, his personality gradually changed, and his life gradually became happy and normal.