18th century Vienna. The true story of Maria Theresia von Paradis, a gifted piano player and close friend of Mozart, who lost her eye-sight as a child. Desperate to cure their talented daughter, the Paradis entrust Maria to Dr. Mesmer, a forward-thinking-physician who gives her the care and attention that she requires. With the doctor’s innovative techniques of magnetism, Maria slowly recovers her sight. But this miracle comes at a price as the woman progressively starts to lose her gift for music. Faced with a heavy dilemma, Mademoiselle Paradis will have to choose: an ordinary life in the light or an extraordinary life in darkness, as a virtuoso.