The thirteenth volume of the East Frisian crime series by number one bestseller author Klaus-Peter Wolf presents a very special case for Ann Kathrin Klaasen. He is light-shy and evil. He has chosen East Frisia as his new hunting ground. "That was his first mistake!" says Ann Kathrin Klaasen. "If he makes another one now..." A murderer is on the loose in East Frisia. One who kills women in holiday apartments. Right where they feel the safest. What connects these women? They all had a tattoo - a so-called power animal. It is supposed to convey strength and power. Frank Weller is particularly uneasy: his daughter has a new boyfriend. And not only that: she also has such a tattoo! In this thirteenth case, Ann Kathrin Klaasen is hunting a psychopathic killer - the new installment in this unique exceptional series that fans are eagerly awaiting.