Twelve Angry Men is a play by Reginald Rose adapted from his 1954 teleplay of the same title for the CBS Studio One anthology television series.

The story begins after closing arguments have been presented in the capital murder case against a troubled teenager, who stands accused of killing his father with premeditation.

The alleged murder weapon, a knife that was testified to be unique, turns out to be identical to one in Juror 8's possession, a common switchblade.

One of the witnesses, a downstairs neighbor, claimed to have heard the defendant yell "I am going to kill you," a loud thud, then saw the defendant fleeing down the staircase of their shared apartment complex 15 seconds after the incident; an experiment shows that a man of his age and condition could not have possibly reached the staircase in a comparable amount of time, and furthermore, a passing train would have overwhelmed any sound the witness had heard beyond any clear identification.

Juror 8 is initially unable to rebut this evidence until realizing that the witness normally wore glasses, which she would not have been wearing in bed, making it highly unlikely she actually saw the crime in sufficient detail to identify the perpetrator.

In an impassioned final plea, he vows to hang the jury and relates the crime to his own strained relationship with his son, then breaks down in tears.

The characters are unnamed; throughout their deliberation, not a single juror calls another by his name, and they are identified in the script merely by number.

Prosky had starred as "#3" in a Washington D.C. production of the show, opposite Roy Scheider as "#8" and Rene Auberjonois as "#5".

In 2005, L.A. Theatre Works presented a production of the play that was recorded and released in 2006 as an audiobook; directed by John de Lancie, the cast included Dan Castellaneta, Jeffrey Donovan, Héctor Elizondo, Robert Foxworth, James Gleason, Kevin Kilner, Richard Kind, Alan Mandell, Rob Nagle, Armin Shimerman, Joe Spano, and Steve Vinovich.

[8] The London West End production opened in November 2013 (running until March 1, 2014) at the Garrick Theatre.

[9] In 2014, Independent Theatre Pakistan performed an adaptation of this play at Alhamra Arts Council, Lahore, directed by Azeem Hamid.