Wang Jiayou, a young worker at the Shanghai New Machinery Factory, is a man whose life is unorganized, does not pay attention to labor discipline, and often spends his youth in dance halls, skating rinks and cafes. When working during the day, he appears listless and often has accidents.
| Actor | Role |
|---|---|
 Han FeiJiayou Wang | Jiayou Wang |
 Zhang FaMr. Hu | Mr. Hu |
 Wang BeiShufen Hu | Shufen Hu |
 Feng XiaoFuhao Liu | Fuhao Liu |
 Shi YuanQihong Xiao | Qihong Xiao |
 Hua YangSecretary Qian | Secretary Qian |
 Xuepeng FanShufen's mother | Shufen's mother |
 Guan HongdaChairman Zhu | Chairman Zhu |
 Gao XiaoouMaster Sun | Master Sun |
 Xie YibingLibrarian | Librarian |
 Yang MengchangAnnouncer | Announcer |
| YYin ChengOld doorman | Old doorman |
| QQi BaoMailman | Mailman |