The Secret Adversary

Tommy Beresford and Prudence "Tuppence" Cowley, young lovers struggling after the Great War, start a daring business venture, which soon leads them into a perilous mystery. Their first assignment takes them to Paris, where Tuppence must pose as an American, only to uncover threats, secrets, and a missing woman whose disappearance has puzzled London for years. As they delve deeper into the case, the couple becomes embroiled in dangerous intrigue that threatens their lives and the fate of important secret documents.