Three couples are involved in a murder at Montecarlo.

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.

Two spouses discover a corpse that mysteriously disappears and then reappear in their suitcase. This is stolen by a couple of teens who are suspected, like the first two, of murder.

Noah earns his living as a plastic flower seller and despite his crushes and hardships, his sweet and dreamy character pushes him to go forward, as well as the love for a girl to whom he usually gives a flower every week . One day he discovers that his loved one has lost her life and begins to wander aimlessly, eventually becoming a hero after saving a clown from certain death but at the same time remains a slave to interest games by shady individuals. When he attends the representation of Romeo and Juliet, he finds in the female protagonist the features of the girl he loved.