Knight Without Armour

In the tumultuous years following the Russian Revolution, A.J. Fothergill (Robert Donat) assumes the identity of Peter Ouranoff, a Bolshevik radical, to infiltrate the inner circle of the revolutionaries. As "Peter," he becomes embroiled in a complex web of espionage and counter-espionage, with his mission taking a dramatic turn when he falls in love with the beautiful Countess Alexandra Vladinoff (Marlene Dietrich).