While working on the Côte d'Azur, Samuel sees Kristin – a woman with whom he had an affair a year earlier – arriving. When she spots Samuel, the young woman puts their daughter, three-month-old Gloria, in his arms. Immediately, the young mother gets back in the taxi and takes off, leaving the infant with him. Panicked, Samuel sets out to find Kristin.
Believing that she worked in a pub in London, he immediately flies to England. But the information was wrong and Samuel finds himself lost in the British capital with Gloria. Fortunately, at the airport, he meets Bernie, a gay film producer who agrees to help him. Eight years pass. Samuel still lives in London, where he works as a stuntman. His life is centered around Gloria, whom he raises alone. So when Kristin suddenly returns to claim shared custody of the girl, he’s less than happy to see her.