The devil is dancing on Norderney. Koslowski investigates… on the island, in Detmold and Paderborn.

A severed hand on the beach of Norderney…

Marita Winterkämper knows nothing of this gruesome discovery when she flees alone to her holiday home on the island. Back home in Paderborn, her husband Timo is suspected of murder, and she simply wants to get away.

Koslowski promises to take care of them – unaware of the deadly game of cat and mouse he is about to enter. For it seems someone is trying to kill both spouses.

What is Timo's lawyer up to? What does the dubious reporter know? To whom do all the severed hands belong that keep turning up? And did the mentally ill Benno really see the devil dancing on Norderney?

Joachim H. Peters' 22nd novel, his 13th Koslowski mystery and third Norderney crime novel, is a particularly tricky case with many twists and turns. Will Koslowski outwit the devil or end up in hell himself?