Sent to Paris to steal fashion ideas, department store buyer Samantha Blake (Woodward) decides a complete makeover is in order so people will stop mistaking her for a boy. Instead, she is mistaken for a Parisian "Lady of the Night" and decides to play up that role. Meanwhile, American journalist Steve Sherman (Newman) is in Paris to write about the fashion shows, but decides instead to write about this mysterious "Lady of the Night" and the two find themselves falling in love.
