When 45 year old widower Erwan discovers by accident that the man who raised him isn't his real dad, he begins a search for his biological father. He soon locates the mischievous, 70 something Joseph, whom his mother knew briefly. Erwan falls not only for his charm, but that of the impetuous Anna, who has ties to them both. The conflicting familial loyalties soon become compounded by the pregnancy of his own daughter Juliette, who defiantly refuses to name the father.