A tense and claustrophobic nightmare, this cult-classic is widely considered one of the best horror films of the twenty-first century. Written and directed by Neil Marshall, the director of Dog Soldiers and Hellboy, as well as episodes of Game of Thrones, Westworld, and Hannibal.Scream your last breath.After a tragic accident, six friends reunite for a caving expedition. Their adventure soon goes horribly wrong when a collapse traps them deep underground and they find themselves pursued by bloodthirsty creatures. As their friendships deteriorate, they find themselves in a desperate struggle to survive the creatures and each other.