Stanley Snodgrass, perhaps Broadway's clumsiest (if not oldest and most out-of-tune) chorus boy, finds himself unceremoniously ousted from yet another show. Due to an infamous slasher threatening the show's leads, Stanley finds himself brought back as the headliner, unaware that he's being used as bait by police. Even with Detective Logan secretly posing as Stanley's valet, producer Harry Fraser fears Jack the Slasher may not put in an appearance soon enough to prevent Stanley murdering his show.