"All is yours, everywhere is open to you - except the lock that the single key fits. You must promise, if you love me, to leave it well alone." When a 17 year old virgin marries a mature and charismatic Marquis it seems like a fairy tale. But when the Marquis is called away on their wedding night, leaving her only her only his keys and a single instruction, her curiosity leads her to uncover a dark secret. Bryony Lavery's new stage adaptation of Angela Carter's story opened as a Northern Stage production in September 2008.