In Marseille, Rosa, 60, dedicated her life to family and politics with the same sense of duty. Everyone considers her unwavering, until the day she falls in love with Henri. For the first time, Rosa is afraid to commit. Between the pressure of his family, politics and a desire to indulge in her feelings, the conflict is difficult to sustain.

Ondine and Paul have loved each other. When she leaves him, he swears not to love again. To prove this to himself, he pursues the beautiful Camille, whom he intends to seduce and abandon. But Camille puts a spell on Paul whom she desires for herself alone. And, while falling under Camille’s charms, Paul has to deal with the memory of his past love.

Daniel leaves prison. He returns to Marseilles where Mathilda, his daughter, has just given birth. Nicolas, her spouse, a self-employed driver, is exhausted while Mathilda is a sales assistant on a trial basis. But, one night, Nicolas is assaulted by taxi drivers determined to reduce unfair competition.

Overnight, love becomes quantifiable thanks to an innovative scientific institution called Lovecount.