In this gripping Spanish thriller directed by Daniel Monzón, a newly hired prison officer finds himself trapped in a violent inmate uprising. To survive, he must pose as a prisoner and navigate the treacherous dynamics of the cellblock. The film stars Luis Tosar, whose compelling performance adds depth to the intense narrative. Notably, the movie won several Goya Awards, including Best Film. For those interested, it can be viewed for free on 123Movies / Movies123.