The film is based on the work of British children's book writer Georgia Byng. The protagonist Molly Moon is an orphan girl who accidentally discovered a hypnosis book. She learned to hypnotize others. In a series of subsequent books, Molly also mastered other abilities, including stopping time, time travel, reading other people's minds and shapeshifting. Using hypnosis, Molly became famous in a New York competition and became famous and rich. However, another group also set their sights on the hypnosis book. They found Molly and forced her to participate in a plan to rob the most famous jewelry store in New York.