Detlev, a single insurance clerk in his 30s, is kept dependent by his loving and caring mother and loses his girlfriend Karin as a result. Grief and an alcoholic chance acquaintance prompt him to place an ad for marriage. Detlev gets caught up in a whirlwind of friendships and love affairs: with the caring widow Karin; the well-to-do hair salon owner Ute Schöbel; the cultural editor Norma Goldbach, the photo reporter Kerstin and the student Andrea Binz. Detlev, who initially proves himself as a friend and advisor, but also as a lover, becomes increasingly self-confident. He is also successful in his work and finally emancipates himself from his mother. Although he loses "his" women in a turbulent odyssey, Detlev has transformed himself from a mama's boy into a thoroughly acceptable man.