La gammick (1975)

Decided to 'make the States' a hit-man from Montreal accept a contract in New York to kill a mafioso boss, Frank Anastasia. Naturally the Americans don't accept what that 'stranger', that frog have done and track him back. Despaired he contact a radio talk show to tell his story trying to find a way to save the life of his partner in the hand of those who contract him.