Whats wrong with this movie,,

Nothing wrong with it.

It's only got 157 ratings at this point (as I write this)... and barely any discussion. A lot of those low ratings could just be crackpots that zoom through and vote down anything they don't like the looks of. Maybe they think horror movies are 'demonic' or somesuch.
Ratings don't mean much anyway, I get more info by reading why a person liked/disliked the movie.

Whats wrong with it?
First night on the job, with exact instruction only 5 minutes previously about how to open the door and should the two Security Guards with the box not knock within ONE minute to NEVER open the door again!!
Within 5 minutes his Girlfriend and drunken pals decide it would be a good idea to arrive at his workplace ( on his FIRST night ) and bring her Birthday to him.
1.He lets them in.
2.He lets one of them attempt to open the door without telling her to back the *beep* away.
3.He leaves the building.
4.He returns to the building to discover drunk Lesbian who had previously been trying to open door is now missing and low and behold so is the key to open the door.
5.He then allows the entire party - himself included- to enter this room which he'd been told not to enter and just seen two burly Security Guards exit with bloodied lips, ripped Uniforms and showing obvious signs of physical (or other) assault.
6. He then states that they can search for missing girl for TEN minutes after having been told that if said Security Guards were not out within ONE minute to never open door again.
7. Our heroes then proceed to meander in a oh so nonchalant manner, like they're out for a Moonlit stroll down the beach. Even after strange and (to a normal person) terryfing events occur in warehouse, they STILL stroll around aimlessly, stopping for nice little conversations amongst themselves about the weird s*** that's been going on "DOWN THERE".
8."Army Girl" acts like a retard continually - in the scene where he's taking a leak in the corner and conveniently asks her to move, she pops her head round to se our shadow figure talking to our other retard but decides the sound of a can getting kicked is more important than actually saying something to our urinating retard until he "jump scares". She doesn't even seem overly concerned that someone was actually talking to him even though they were the only ones "down there".
9. The script was obviously written by a Child.
10. The Film is obviously aimed at Pre School kids.
11. Mia suddenly appears from nowhere with a voice, only to find she's at the door to freedom.
12. Almost the entire time they were "down there" they never actually called out her name. Surely the one thing you would do while looking for a lost friend??
How anyone could actually enjoy this is beyond me. This is one of the worst Films i've ever witnessed.