Romano Calò

Escaping a Nazi prison train in war-torn Italy, an American and a British soldier set out for the Swiss border and find themselves leading a multi-national party of refugees for the Italian underground. (imdb)

Marco Fuser, an outlaw. returns to Venice after many years. His son who works in the studio of a celebrated painter is unaware of his father's history. Arrested by the Doge's men, Marco agrees to become a bravo in the service of the city's ruler and kill his enemies. He enjoys some success at this, until he finds he has been tasked with killing his son.