Emile Magis, a modest employee, more or less ostracized by the others, would like only one thing, to be happy. Little by little he realizes that life in society is a matter of convention, lies and deception. When he has understood that cynicism rules the world, he decides to play by its untold rules and to take his revenge.

In Athens a collection of emeralds is successfully stolen by a team of robbers, led by safe-cracker Azad. Things go smoothly until they miss the ship by which they planned their escape; a police chief pursues Azad while he waits for the next ship to set off.