Description

Distraught, confused and half-wild with fear, Sarah Carter emerges alone from the caving trip where she encountered unspeakable terrors. Unable to explain to the authorities what happened - or why she's covered in her friends' blood - Sarah is forced back to the subterranean depths to help locate her five missing companions. As the rescue party drives deeper into uncharted caverns, nightmarish visions of the recent past begin to haunt Sarah as she realises the full horror and futility of the mission.