A young man is hit by a car on a zebra crossing. The pretty driver drives him home, takes care of him and falls in love with him. She has a fat, selfish, boorish husband whom she abandons to her imaginary illnesses to marry her nice wounded man.
Charming Mimi-Trottin is in love with typographer Louis Chausson, nicknamed Godasse. She meets Doudou, actually a Vicomte, estranged with his parents who are rich automobile manufacturers. Godasse abandons Mimi because of his professional ambitions and Doudou rescues her from a suicide. After making peace with his parents, the young man has Mimi hired as a typist at the factory. After winning a race with one of his father's car, he soon wins the heart and the hand of Mimi.
Bernard, Sleeper Coach conductor and automobile inventor, is confused to be the racing car company president, and falls in love with a countess, who is actually a slogan prize winner chorine.
