Someone is picking off the last remaining occupants of a condemned tower block, using a high powered, silenced sniper rifle. Nobody else has heard the shots, and no help is coming. If the terrified victims can't figure out how to escape, they're all going to be killed, one by one.
With career-defining performances from Sheridan Smith and Jack O'Connell, this fantastically gripping action thriller is not to be missed.
This is a Region 4 disc, the local region for Australia.