The film explores the life of the legendary pianist Martha Argerich, following her over nearly a decade and documenting her music, memories, friendships, past loves, and travels. Drawing on memories and concert archives, the documentary reveals this one-of-a-kind performer through the eyes of her daughter, Annie Dutoit-Argerich. Together with director Martin Mirabel, they explore key events in Martha's career, allowing viewers to discover intimate, unforgettable and never-before-seen moments.