Romantic poets Lord Byron and Percy Bysshe Shelley, along with Shelly's future wife, Mary, and her beautiful stepsister, Claire, travel blissfully through Switzerland one summer. Both women share Shelley's bed, while the tortured Lord Byron flounder in a secret relationship with his physician. They experiment with opium, "free love", and the nature of good and evil. The events form the foundation for Mary Shelley's famous novel, Frankenstein. This drama is part surreal, part historical - of lust and fantasy, of ecstasy and horror, of the inner strings of creativity.