Two paddlers discover a sunken fishing boat far off the Lindau Island, resting on the bottom of a mud and gravel bank. It lies upside down at a depth of about four meters and is partially covered in mud. When they attempt to recover it, the foot of a man becomes visible. A new case for Schielin, his team, and Engel Ronsard. The forensic report indicates that the deceased had been underwater for several months, with drowning determined as the cause of death. It could be a quickly solved case, were it not for the two bullet wounds in the man's back and the fact that no one is missing a man in his forties. Additionally, the registered boat was never reported stolen or missing. Is the deceased the owner of the boat?.