Evey's been to this facility a number of times and they've never really gotten their bearings. They're still surprised by the stuff they find there. Like that time they saw those researchers playing an extraterrestrial video game. It didn't really have an objective. It was just exploring every room possible in an alien city. It was very detailed and you could interact with everything in the game. Evey had to admit it was pretty engrossing.
But there's nothing like that behind this door. There is definitely something they've never seen though.