Edmond Vidal spent his childhood in poverty, but he knows the true value of family and devotion. He is always faithful to his word, even when he gives the word to the enemy. A faithful wife and true friend, he was ready to help in any adversity, but this did not stop him from being the leader of the most famous gang that robbed banks in Paris in the early 70s.
The plot of the movie is based on the story of a famous French gang that operated near Lyon from 1967-1974. Their distinctive signature was to perform the robbery bloodlessly and without any violence.