Nine people are assigned to Falcon Bravo, a decommissioned oil rig 250 miles out in the North Sea, to undertake routine maintenance. Eight men and one woman, until the mystery on the sub-level makes itself known. Salvation comes in the form of an unsuspecting crew member who provides the creature with its first proper meal - himself.

When caught in the act of feeding on a crew member Euterich knows the game is up and it is only a matter of time before he is hunted down and killed. Now the demonic shapeshifter has only one desperate objective in mind, to perpetuate his kind while he still can. He needs to get the body count down to one man and one woman, but is that one man human? Offshore, it is isolation, thrilling and visceral tension, and a place where no escape is possible.