Nymphen und Don Juans

The unassuming librarian Karin Hentschel has been murdered. Mick and Andreas investigate and uncover her surprising secret: she was a sex addict! She had been trying to get her addiction under control in a support group. Mick has to learn a lot about "nymphomania" and "Don Juanism" and quickly realizes that everyone in the support group has something to hide. Mick's investigation focuses in particular on the attractive leader of the group.