Imprisoned, Rubashov is at first relieved to be finished with the anxiety of dread during mass arrests. He is expecting to be kept in solitary confinement until he is shot. He begins to communicate with No. 402, the man in the adjacent cell, by using a tap code. Unlike Rubashov, No. 402 is not an intellectual, but rather a Tsarist army officer, who hates Communists. Their relationship begins on a sour note as No. 402 expresses delight at Rubashov's political misfortune; however No. 402 has non-political urges too, and when he pleads for Rubashov to give him details about the last time he slept with a woman, once Rubashov does so No. 402 warms up to him. The two grow closer over time and exchange information about the prison and its inmates.