Robert McCall finds himself at home in Southern Italy but he discovers his friends are under the control of local crime bosses. As events turn deadly, McCall knows what he has to do: become his friends' protector by taking on the mafia.

An old film director unhappy with the movie he's shooting about a Hungarian circus stranded in Rome during the 1956 anti-Soviet uprising faces divorce from his producer wife and other problems.

Viola Vitale, Miss Italy and fashion journalist, returns to Sicily to look for her father. She starts working for a digital news company and joins police inspector Francesco Demir in solving crime with the help of synesthesia.