Our Woman in Moscow

In 1952, Iris Digby, a former spy, disappears from her London home, leaving her sister Ruth to uncover the truth. Ruth travels to Moscow, where Iris's husband, a diplomat, is stationed, and delves into the secrets of her sister's past, including her wartime experiences and a dangerous love affair. As Ruth navigates the treacherous world of Cold War espionage, she must confront the possibility that her sister may be a traitor.