Kozo Nakase (Masahiko Tsugawa) attends meetings for single widowers looking to remarry. He meets Sayoko Takeuchi (Shinobu Otake) and eventually marries her. Not longer after their marriage, Kozo Nakase suddenly collapses and dies. Kozo Nakase leaves everything to Sayako. The rest of his family are left out of his will including his daughter Tomomi (Machiko Ono). Tomomi hires a private investigator, Honda (Masatoshi Nagase), to find out more about Sayoko.