Inside (upcoming film)

Inside is a 2013 American horror film written and directed by Daryn Tufts, and starring Luke Goss, Paul Rae, Isaac Singleton, and Derek Phillips.

While asleep on his bunk during his first night locked up, Miles is ripped awake by a terrifying crash. A moment later, in the dark, guards rush past his cell. Working with Anthony Paul Rae, the lifer in the cell next to him, Miles tries to determine what is going on, but this is unlike anything that has ever happened in this prison. Soon, Miles and Anthony hear gunfire. And then screaming... the horrible, sickening screams of a man being torn apart. Something bad is happening in this prison.Outside of his cell, through the darkness, Miles can hear other inmates talking, yellingtrying to figure out what is happening. A voice over a PA system instructs all of the prisoners to remain calm and quiet. There has been a situation. It has been contained. But Miles and Anthony know that is a lie. Something is loose in the prison, and it is killing the guards. ........

Source: Wikipedia