Alec Leamas, a British spy is sent to East Germany supposedly to defect, but in fact to sow disinformation. As more plot turns appear, Leamas becomes more convinced that his own people see him as just a cog. His struggle back from dehumanization becomes the final focus of the story.

The defense and the prosecution have rested and the jury is filing into the jury room to decide if a young Spanish-American is guilty or innocent of murdering his father. What begins as an open and shut case of murder soon becomes a mini-drama of each of the jurors' prejudices and preconceptions about the trial, the accused, and each other. Based on the play, all of the action takes place on the stage of the jury room.