After watching her friend fall from a building a depressed high school girl runs away from home. When she is picked up by a nice guy on a phone date she realizes too late that he has plans to use her for his own ends.

Koichi and Mariko are a married couple. Both husband and wife have their own careers. Koichi is a civil servant who returns home on time, while Mariko returns home late at night, leaving their love life cold.