A rich man's son has lived a dissipated life and has joined a circus where he shares the courageous and perilous lives of its artists. He falls in love with a young dancer and is loved in return by her. But their passion goes through many vicissitudes.
In the Le Mans railway station, Oscar Ribouis is waiting for the connection that will lead him to Rennes, his home town. Feeling a bit thirsty, he decides to have a quick one at the refreshing room. And feeling a bit lonely he invites a rail worker to have a drink in his company and tells him about...