In a jury room, there were 12 men, they were deciding a boy who was claimed that he killed his father was guilty or not. 11 of them thought he was guilty, the 8th juror thought he was not guilty.
All jurors except the 3rd and the 7th juror decided to listen to the 8th juror. The 3rd jurors and the 7th juror were really angry, they did't want to listen to the same thing again and again, some agrees happened between them.
The 8th juror talked about the evidence. The old man said he heard the boy yelled "I'm gonna kill you." the woman said she saw the boy killed his father. The 8th juror proved they were wrong and everyone except the 3rd juror changed their vote to "not guilty".
When it was 11 "not guilty", 1 "guilty", everyone started to convinced the 3rd juror. Then the 3rd juror said his reason which was the boy want to kill his father, he shouldn't do that. But after the 8th juror said the boy was not his kid and the 4th juror said let him live, the 3rd juror changed his vote to "not guilty".
After all the jurors finished the decision which was "not guilty", the Forman told the guard and everyone except the 3rd and the 8th juror were ready to leave.
At the end, the 8th juror helped the 3rd juror to wear his coat and leave, he looked at the jury room with the switchblade still on the table, he left.