After an autumn storm, a skeletonized body is found under an uprooted oak tree. As Borowski suspects very quickly, it is the remains of his first girlfriend Susanne. When Borowski was 16, he wanted to hitchhike with her to the legendary Jimi Hendrix performance on Fehmarn. After an argument, however, Susanne disappeared without a trace. Borowski had tirelessly tried to explain the disappearance. What was a gloomy suspicion at the time is now abruptly bitter certainty when the forensic doctor Kroll unequivocally identifies the corpse. More determined than ever and without consulting his colleagues, Borowski pursues the unexpected opportunity to catch the perpetrator after all these years.