Dark of the Moon is a tragic play in the vein of Romeo and Juliet and Twilight, set in the Appalachian Mountains during the 1920s. The play centers around the character of John, a witch boy, who seeks to become human after falling in love with a human girl, the beautiful copper-haired Barbara Allen. John tells a Conjur Woman he will pay any amount and agree to any terms just so long as he can be with his mortal love. She agrees, and he marries Barbara Allen; if Barbara is faithful to him for a year, then John will remain a human. Meanwhile, the rest of Barbara's clan doesn't much approve of John, or Barbara's strange newborn baby.