THRILLSEEKERS were paralysed with fear when a terrifying tour of a pharmaceutical complex went horribly wrong.
A groundbreaking new drug which can halt the ageing process is being tested at the Young Futures Corps premises, in Railway Street, Grimsby.
But there was a power cut during a tour of the facility, and some of the test subjects underwent a terrifying transformation ... into the undead.
Thankfully, this terrifying scenario in the heart of Grimsby is made up by the people behind Modern Ops Paintball.
It's called The Walking Undead tour, and a dark warehouse has been created to scare you out of your wits – but only for 90 minutes!
Owner Mike Burley created the story for the tour of something going wrong at a controversial medical testing site, and tested it out on family and friends at the weekend.
In the story, staff at the facility have been using humans to test ReGenerate, a new drug which can apparently halt the process of ageing.
But ReGenerate has had some "unintended consequences" on test subjects.
During the walk-round, there is a power cut and test subjects breach the restricted area, attacking the visitors.
Unfortunately, they are infected with a highly contagious disease – and the visitors' fight for survival begins.
Scream as you're confronted with a disfigured "monster" in a lab coat attempting to bite you.
It is believed this poor man could be Ernest Heitinger, the award-winning German biologist who became famous for testing his treatments on himself.
Another test subject, seen with blood dripping from his mouth and wearing a sharp business suit, is believed to be Young Futures chief executive Kurt Smith, who went missing in June last year.
Even more concerning is that it is believed there were at least 30 more test subjects in the facility when testing was abandoned – and all remain unaccounted for.
But of course, it's not in the slightest bit real!
Mr Burley said: "Come to the facility and you will feel as though you have been transported into a horror movie."
The tours cost £30, last 90 minutes, and take you round a dark warehouse created within Mr Burley's paintballing facility.
Click here to find out more including how to book