在这部乒乓球剧情片中,该剧改编自赵金山作家的同名网漫，讲述青年大学生遇到可疑的流浪汉之后，通过经历过往无法实现的爱情的共鸣和感情的转移的过程，体验混乱和真实的故事。
刘在明饰演在居民区附近的小河边生活的可疑的流浪汉金得焕，金志洙饰演感情压抑的哲学系大学生金英俊，这也是两位演员继JTBC《大力女子都奉顺》之后时隔一年再次合作。
Kim Young-joon is a philosophy major at a university. He confesses his feelings to a female classmate, but she rejects him. He takes her rejection hard. He then meets a mysterious homeless man, Kim Deuk-hwan who lives under a small bridge. Kim Deuk-hwan has also experienced rejection in love and they develop a friendship.
治郁系。
