An eccentric family portrait set during the May 1968 protests in Paris. A nine-year-old boy stays with his grandparents and uncles while his parents protest. When an illustrious guest seeks refuge in the apartment, the family’s dynamics change.

Lionel is a happy gay man with a great career and an open-minded family that accepts his loyal lover, Serge. But things start to unravel when he meets a pretty Polish immigrant who is about to be deported and decides to marry her.