An irreverent gentleman, an abandoned wife, and a secret marriage. But is anything really what it seems?

Fun-loving Percy, the Captain Lord Granston, is everyone's favorite cad, but his easy charm hides his fear that he's losing his grip on reality. Then his wife arrives in London. The only problem is, he doesn't remember marrying her.

Twice-widowed Finola Tenney Simmons has lost her hard-earned fortune and needs a pretend husband to help her reclaim it. She turns to her old acquaintance Captain Granston to play the part. There's just one complication. The captain inexplicably believes they're truly married.

When Percy learns the truth, he agrees help her secure her fortune in return for her assistance in settling his family affairs before he loses his faculties. Their plan will work like a charm, if only they can deny the passion between them and keep from falling in love.