Noises Off is a play within a play. It is about an ambitious director and his troupe of mediocre actors. The cast and crew are putting together a silly sex comedy titled, Nothing On - a single-set farce in which lovers frolic, doors slam, clothes are tossed away, and embarrassing hi-jinks ensue. The three acts of Noises Off expose different phases of the disastrous show, Nothing On: Act One: On stage during dress rehearsal. Act Two: Backstage during a matinee performance. Act Three: On stage during a delightfully ruined performance.