When his anarchist friend is killed trying to assassinate Mussolini, Tunin (Giancarlo Giannini) decides it's up to him to finish the job.

While visiting a brothel, he meets a prostitute named Salome (Mariangela Melato), who agrees to help with his plan, as her former boyfriend was also killed by Mussolini. They enlist the aid of another prostitute, Tripolina (Lina Polito), and hatch an elaborate plan, but, when the fateful day comes, the women have second thoughts.