![Miss Marple: Sleeping Murder](https://image.tmdb.org/t/p/w185/ftRzm2VntQP3fDPnzBm8T7Mt613.jpg)
During the Cold War, an American scientist appears to defect to East Germany as part of a cloak and dagger mission to find the formula for a resin solution, but the plan goes awry when his fiancee, unaware of his motivation, follows him across the border.