Pharma lab owner-manager Dr. Helmut Lassnik is found on a jogging track, fatally shot nearby, where only a candy wrapper is found, prints wiped. The fresh widow Anna, who now inherits everything, hints to recently fired researcher Clemens Reithofer, suspected of selling the firm's only major discovery to a small competitor, hides having discovered Helmut's affair with both men's coach Manfred Seiler. Meanwhile Hansen's duo for the first Oberbayern police regatta is dangerously shaky.