A serial killer is on the loose, leaving no traces and showing no patterns - until the showdown in Venice. He is the perfect serial murderer, devoid of empathy and remorse, a master of disguise who randomly selects his victims and never strikes in the same place twice, hence his name: the Tourist. Yet even the coldest killer makes mistakes - precisely in Venice. The winding streets and canals become his trap when he crosses paths with a dubious gang that wants to use him as a deadly weapon. The former head of the homicide division, Pietro Sambo, has also made a mistake - broken, he lives on the fringes of society. Unexpectedly, a final chance presents itself to him. Carlotto pushes his game with genres to the limits. His thriller offers no narrative certainties anymore, except for the one that raises adrenaline levels.