Ivan Denisovich is a prisoner in a Stalinist labor camp who faces daily hardships and struggles to maintain his humanity.

Moscow, Christmas Eve, 1949. The Soviet secret police intercept a call made to the American embassy by a Russian diplomat who promises to deliver secrets about the nascent Soviet Atomic Bomb program. On that same day, a brilliant mathematician is locked away inside a Moscow prison that houses the country's brightest minds. He and his fellow prisoners are charged with using their abilities to sleuth out the caller's identity, and they must choose whether...