Jacob Kuisl is a formidable executioner from the ancient Bavarian town of Schongau. It is through his hands that justice is administered. The townspeople fear and avoid Jacob, considering the executioner akin to the devil...In January 1660, death visited a church parish near the Bavarian city of Schongau. A local priest died under very mysterious circumstances. The young doctor Simon Fronwieser has no doubt: the deadly poison is to blame! The city executioner Kuizl decides to take up this strange case. He and his daughter Magdalena discover that before his death, the priest discovered an ancient tomb under the church. A tomb containing the remains of a Templar knight and some terrible secret hidden by him for future generations...