Mike Bertram is fatally shot, yet the only bidder not robbed of the mandatory cash advance, at a masked man's armed robbery during a house auction in Wiesbaden's court house. It's the first case for prosecutor Reuther's new deputy Tobias Blumenthal, promoted from financial crimes, son of an impossible to please attorney. The team investigates the Haber heirs selling the victim's dream-home, architect Fiedler who bid on it by proxy, and the security officer whose gun was used, yet Reuther comes up with a surprising other suspect.