The Edinburgh Festival provides a colourful background for this lively musical comedy. When penniless dancer Janet Jones (Vera-Ellen) emerges from a limousine at the festival, she's mistaken for the girlfriend of the car's millionaire owner - when in fact, she'd only hitched a ride with the driver. Suddenly Broadway director John Frost (Cesar Romero) wants her in his next musical in order to get financing from this 'millionaire boyfriend'. Soon Janet is romanced by B.G. Bruno (David Niven), the limo's real millionaire owner.