Above Suspicion

It's 1939 and British intelligence needs to reconnect with a missing agent on the Continent who has details of a secret Nazi weapon. Enter newlyweds Frances and Richard Myles, who agree to forsake their European honeymoon for an even more adventurous foray into espionage. So off they go into a world of cryptographs, disguises, code words, shadowy rendezvous and the Gestapo. (official distributor synopsis)