A live streamed, publicity stunt, filmed inside London's most famous scare attraction takes a terrifying turn as the event awakes an evil spirit. Something relentless and seemingly unstoppable starts stalking the celebrity guests through the claustrophobic halls of this maze of terror.

In the not too distant future where a deadly disease has gripped the world, Arcadia has been built as safe disease-free haven for the privileged. Outside Arcadia, the average life lasts merely 40 years - unless they can earn a place amongst the elite.

After she betrays a powerful mob boss, a woman matches wits and weaponry with a legion of killers who are out to collect the bounty on the heads of her and her family.