Salzburg at Pentecost. Locals and thousands of tourists look forward to the Salzburg Pentecost Festival and the attractions of the famous water games at Hellbrunn Palace. There, the magistrate and socialite Wolfgang Rilling is celebrating a lavish party in the style of the pleasure-loving archbishops of days gone by. The next morning, Rilling is found dead in the Roman Theater of the Hellbrunn water games. Murdered. Commissioner Martin Merana navigates through the case amidst baroque joy and personal crises.