When drama teacher Paul Samson decides to put on a High School production of Macbeth, he forgets that it isn't just The Scottish Play, it is The Cursed Play. And Paul soon learns just how cursed. After grappling with his principal, the PTA, his family, and his students, he must contend with witches, ghosts, and skeletons from his past. The show is destined from the outset to end badly, but no matter how desperate or dangerous circumstances become, Paul cannot cancel the play. Theatre has but one rule and one rule only: the show must go on.