A spree of grisly murders is perpetrated in Frankfurt by a group of Satan worshippers. A lonely schoolteacher almost runs over an elderly man and takes him in, unbeknown to her the man has plans for her – plans that involve a permanent future with the Satanic cult.
The stories revolve around the investigations of Valentina Rosselli, and the intrigues in which she gets involved because of her curiosity and her wonderful physical appearance. In the Shareholders She is often assisted by the antiquarian Philip Rembrandt, with whom she shares an ambiguous relationship.
