Robbed a second time in a short period, security courier Sven Keller is now shot leaving a client supermarket with the cash case in hand, watched by shocked colleague Jürgen Friedrich and fatally shoot his attacker. Friedrich blames the police for failing to solve the bloodless robbery, apparently by the same man. Sven Keller's self-defense claim is duly doubted on several grounds, including both men's past;, an elaborate plot unveiled.