 Philipp Gerber is a smart, but self-satisfied car salesman. In an inattentive moment at the wheel of his car, he runs over a biker and drives away. As he has feelings of guilt, he tries to find out more about the accident s victim and learns that the boy lies seriously injured in a hospital. Philipp wants to tell his mother Laura Reiser the truth, but he doesn t. After a carefree holiday with his girlfriend Katja, he learns that the boy is dead. Meanwhile, Laura staggers between grief and the desire for revenge. One evening, she can t bear it any more and jumps off a bridge, but Philipp saves her life...