Two scientists are chosen as guinea pigs for a time experiment: they are placed in hibernation and should be brought back to life after three years. In the meantime, however, World War III breaks out and life has been wiped off the surface of Earth. When they wake up, it turns out that not only 50 years have passed but also that they are the only living specimens of the male sex in a new, underground society composed exclusively of women.

While studying in Moscow, the GDR resident Christiane falls in love with Hatem, a fellow student from Syria. The two become a couple and have a child together. When their study draws to an end, Christiane and Hatem have to decide if they want to share their future together.