Hapless high school theater teacher Dana Marschz (Steve Coogan) writes pretentious musical adaptations of Hollywood blockbusters for his indifferent students to perform. His home life is equally shambolic, with his hostile and unhappy wife (Catherine Keener) having an affair with their lodger (David Arquette). When Dana's latest brainstorm, a musical version of Hamlet that includes time travel and a visit from Jesus, threatens to get him fired, his students band together on his behalf.