The male central character (played by Ayhan Işık) and his spouse (Pervin Par) fall out with one another over a domestic affair. In revenge he decides to ruin his father-in-law.

The film tells the story of Sıtkı Bey, who lives a different life during the day and at night. Sıtkı Bey, who owns a typing course, is a quiet and cold man who is not interested in women. This attitude also affects his students. However, Sıtkı Bey takes on a different character at night. He does not remember what he does at night during the day. Due to his nocturnal escapades, he gains many enemies. When his escapades become known, the typing course will also be in danger.