Set in glamorous 1930’s London, Miss Pettigrew Lives for a Day is a Cinderella story for grown-ups. When dowdy middle-aged governess Guinevere Pettigrew loses her latest job, her luck appears to have run out. Desperate for employment, she shows up at the plush flat of Delysia Lafosse, a glamorous nightclub singer whose desire for celebrity is only eclipsed by her interest in men. Delysia immediately calls on her new "social secretary" to help her juggle her numerous suitors. Finding herself catapulted into the dizzying social whirl of London’s high society, every dream that Pettigrew had given up on becomes reality for 24 hours.