The world-renowned pianist Martha Argerich is known to be a very private person. Fortunately for her fans her daughter Stéphanie decided to make a very personal film about her mother. The youngest of the three daughters with three different husbands, there was a lot Stéphanie wanted to know. Although the hard questions are not pushed, a portrait emerges of a great talent struggling to balance her career and children. At 72, Martha and her daughters have a warm relationship despite all they have been through.