Ferdinando Cefalù is desperate to marry his cousin, Angela, but he is married to Rosalia and divorce is illegal in Italy. To get around the law, he tries to trick his wife into having an affair so he can catch her and murder her, as he knows he would be given a light sentence for killing an adulterous woman. He persuades a painter to lure his wife into an affair, but Rosalia proves to be more faithful than he expected.
A middle-aged man meets a young woman who is waiting on a canal bridge for her lover's return.
A police inspector comes into contact with people of all types and dispositions during a grueling murder investigation.
