Alphonse gets assaulted by mafia men at a job he struggles to keep. On paid leave in therapy, he discusses his mother's disappearance when he was a child. Returning to work, he's immediately let go by his boss and in the same day learns his estranged father is in hospital. Their rekindling is rocky, especially when Alphonse finds out that his father has secretly worked as a gigolo his whole life.

Telling his wife Margot he's found success in a new day job, Alphonse secretly replaces his father as a gigolo servicing aging Parisian women. Though he stumbles out of the gate, struggling to keep his high-maintenance clientele satisfied, he soon discovers the work helps him come into his own. His clever wife, however, doesn't stay fooled for long.

Alphonse's top client Adèle has a troublesome grandson who's after her money by hook or by crook. Alphonse and his father lock horns over management of the business when it becomes apparent Alphonse is a prodigy. Margot begins an affair with the couple's lesbian mortgage advisor. Alphonse's long-lost mother, recently widowed in Italy, takes a trip back to Paris.