What is the author's style in Twelve Angry Men by Reginald Rose?

Twelve Angry Men is a play divided into three acts. The play follows a jury from the closing instructions of a murder trial into the deliberation room. There we witness the jury's deliberations from start to finish. The deliberations begin with an 11-1 vote to convict. Jury No. 8 feels something is amiss, but cannot put his finger on it. One by one, the jury peels away layers of the case in order to make their final, grave decision. Likewise, one by one their layers of prejudice and hatred are peeled away. One by one, the jurors change their votes from guilty to not guilty. The structure of the play then, follows the jurors as they make this very significant change of opinion from guilt to innocence.