A fateful accident sets off a murderous chain reaction Following a clandestine meeting with his lover a man kills a young boy in a hit and run, but does not escape unseen. The ensuing blackmail drama claims further victims, including Van Veeterens son, Erich. Van Veeterens attempts to involve himself in the investigation put his relationship with Münster and Moreno under strain, especially as a picture of Erich begins to emerge that Van Veeteren refuses to accept. In the end Van Veeteren has to use himself as bait to lure the killer into the open.