Mary-Jane, almost 40, falls in love with Julien, almost 15, a classmate of her daughter. He is especially interested in video games. She wonders about the nature of feelings. Another form of play. Where we really suffer, this time ... After a documentary-portrait-collage-fantasy around Jane Birkin, the filmmaker has produced a supplement. fictional in the wake where, taking inspiration from an argument imagined by the actress, she filmed a "little love" invented but interpreted by those around her very real: children of each other, friends ... A game that comes in every sense of the word to form a cruel little tale of disillusionment and the force of desire.