Some time after "Baisers Voles", Antoine Doinel (Jean-Pierre Leaud) and Christine Darbon (Claude Jade) are married and Antoine works dying flowers, and Christine is pregnant and gives private classes of violin. When Christine is near to have a baby, Antoine decides to find a new job, and he succeeds due to a misunderstanding of his employer. In a business meeting, he meets the Japanese Kyoko (Mademoiselle Hiroko) and they have an affair. When Christine accidentally discovers that Antoine has a lover, they separate. But later they miss each other and realize that they do love each other.