Pierre Lachenay is a well-known publisher and lecturer, married with Franca and father of Sabine, around 10. He meets an air hostess, Nicole. They start a love affair, which Pierre is hiding, but he cannot stand staying away from her.
After stealing a diamond from Mylène Demongeot, Richard hides it inside a guitar. But on returning to the music shop he discovers that the precious instrument has just been sold! The problem is complicated by the fact that five stars all bought the same model that morning...
Now Gisèle Bourjeon is the mistress of the count Hubert Martin de Kardec.After a long journey abroad Henri Lévrier, a champagne producer has come back and meets again his friends Hubert and the Bourjeon family.And surprise, Henri doesn't drink alcohol anymore.He says Gisèle that he was drinking because he loved very much.Henri and Gisèle feel well together and become lovers.