At the beginning of the Napoleonic wars; Phoebe Throssel waits patiently for Dr Valentine Brown (Franchot Tone, Phantom Lady) to propose marriage. She's devastated when he chooses to fight for king and country instead. Ten long years later, he returns to find Phoebe is - apparently - an old maid. Annoyed, she dresses in her prettiest clothes to prove him wrong; when Valentine doesn't recognise her in this glamorous disguise, Phoebe pretends to be her own niece, the flirtatious Livvy. Phoebe enjoys playing the tease but when 'Livvy' becomes the subject of scandalised gossip, it's clear she's gone too far.