A year ago, Yann sold his online ready-to-wear business. Since then, he has spent all of his time cultivating bonsai trees, which have begun to take over his beautiful house in the suburbs. Yann’s passion is getting on his wife Catherine’s nerves. She’s tired of having to take a back seat to his hobby. The couple's relative peace of mind is undermined by the unexpected return of Anna, their student daughter, with Thomas, her unemployed boyfriend, when they move in with them. The young couple just lost the apartment they sublet to a friend and have only three days to find accommodation. Unable to endure the disorder caused by this forced cohabitation, Catherine comes up with strategies to spoil the lives of her unwelcome guests and drive them away.