A solitary man, known only as Man in Chair, escapes his 21st century existence by listening to the original cast recording of his favourite 1920’s Broadway musical, The Drowsy Chaperone.  As the needle falls, the musical comes to life around him.  Delighted, Man in Chair leads the audience through the show, introducing the characters and commenting on this 1920’s musical with affection. 

It is a romantic comedy, typical of the era, full of mistaken identities, misunderstandings, and catchy song and dance numbers.  When a Broadway star tries to give up the stage for love, her producer tries to sabotage the wedding to save the show – and his neck - from two gangsters disguised as pastry chefs.  Featuring a Latin lothario, a ditzy chorus girl, an overwhelmed best man, a confused hostess and her manservant, and of course a drowsy chaperone.