The twisted maze of Venice's canals has always been shrouded in mystery. Even the celebrated opera house, La Fenice, has seen its share of death. But nothing so horrific and violent as that of world-famous conductor, Maestro Helmut Wellauer - poisoned during a performance of La Traviata. Even Commissario of Police, Guido Brunetti, used to the labyrinthine corruptions of the city, is shocked at the number of enemies Wellauer has made on his way to the top - but just how many have motive enough for murder? The beauty of Venice is crumbling - and evil can seep through its decaying stones ...