Sculptor Franco Serpieri (Lazenby) welcomes Roberta (Nicoletta Elmi, Deep Red) – his young daughter from a failed marriage – to Venice, unaware that a disturbed child-killer is stalking the city’s canals. When Roberta’s body is found floating face-down in the river, the lives of Franco and his estranged wife Elizabeth (Anita Strindberg, The Case of the Scorpion’s Tail) are ripped asunder. Desperate for vengeance, Franco turns detective in a bid to track down his daughter’s killer, and in the process unearths shocking evidence of depravity and corruption which implicates some of the most respected figures in Venetian society.
