Charming young Ben finds it easy to win over women, especially older ones. As a lover of wealthy women, he persuades them to do shady stock deals and then makes off with the stolen money. His unsuspecting girlfriend Vera, a saleswoman in a jewelry store, gives him information about wealthy single customers. When the energetic Elisabeth Hagen found out about him, Ben grabbed it spontaneously. He drowns his victim in the bathtub and dumps the body in the harbor. But thereshe quickly reappears. While Lena Odenthal and Mario Kopper clarify the victim's identity and find clues to a mysterious lover in his spotless life, Ben lets himself be pampered by his second iron in the fire, the generous Rosemarie Baal.
But then Vera starts asking questions, a car dealer becomes suspicious. Ben makes plans to escape. When Lena gets closer and closer to him in her investigations, Ben's situation comes to a head and he resorts to desperate means.