A veteran spy wants to "come in from the cold" to retirement. He undertakes one last assignment in which he pretends defection and provides the enemy with sufficient evidence to label their leader a double agent.
Veteran spy Alec Leamas, hoping to "come in from the cold" to retirement, is given one last bone-chilling assignment in which he is required to pretend defection and provide the enemy with sufficient evidence to label their leader a double agent.