Noah is a retired chemistry professor living in New York, but born in the South of France. He is days away from his first visit back to Nice, bringing with him a handful of puzzling photos he's discovered from his mother's wartime years. But he receives a call from social services: Noah is the closest available relative of an 11-year-old great-nephew he's never met, who urgently needs someone to look after him. A funny, heart-wrenching tale of an old man and a boy, born two generations apart.