Summary

The play is set in a New York City Court of Law jury room in 1957. The play opens to the empty jury room, and the Judge’s voice is heard, giving a set of final instructions to the jurors. We learn that this is a murder case and that, if found guilty, the mandatory sentence for the accused is the death penalty. After these instructions, the jurors enter.

The men file in and decide to take a short break before deliberating. They complain that the room is hot and without air-conditioning; even the fan doesn’t work. All the jurors presume the obvious guilt of the defendant, whom we learn has been accused of killing his father. Eventually, the twelve sit down and a vote is taken. All of the jurors vote “guilty,” except for the 8th Juror, who votes “not guilty,” which, due to the requirement of a unanimous jury, forces them to discuss the case.
The jurors react violently against this dissenting vote. Ultimately, they decide to go around the table, explaining why they believe the boy to be guilty, in hopes of convincing 8th Juror.
Through this discussion we learn the following facts about the case: an old man living beneath the boy and his father testified that he heard upstairs a fight, the boy shouting, “I’m gonna kill you,” a body hitting the ground, and then he saw the boy running down the stairs. The boy claimed he had been at the movies while his father was murdered, but couldn’t remember the name of the movies or who was in them. A woman living across the street testified that she saw the boy kill his father through the windows of a passing elevated train. The boy had, that night, had an argument with his father, which resulted in the boy’s father hitting him twice. Finally, the boy has an extensive list of prior offenses, including trying to slash another teenager with a knife.
There is a strong rallying against the defendant. 3rd Juror compares him