Nina Heylen has car trouble at night and gets raped in a dark alley and murdered afterward. The forensic team find traces of building material on her body. But finding clues at a building site is like searching for a needle in a haystack. Underneath Nina's body a tank card is found. This is the property of Nicole Callens, an editor of a woman's magazine. Her boyfriend René Stevens, who is unemployed, is known by the police as an aggressive drunkard. Nicole lies when she says her friend never uses her car. But is this evidence he is involved in the rape?