It’s case of 18 years old boy who killed his own father with a knife & there are enough testimonials & proofs to prove him guilty. A jury consists of 12 men has been appointed to solve this court trial with their unanimous vote in a room. Now this is not the usual plot. It’s the thesis of the film. How it become anti-thesis & arrives in the end with synthesis on a discussion table among these 12 jury is a thing to watch here. Sidney Lumet has directed so many brilliantly scripted films but this one is his real masterpiece & remains classic forever. Without a doubt this is Henry Fonda’s career best performance played with a reasonable nuance. Lee J. Cobb as the last stubborn man standing also did a brilliant work.