Wow, this movie is a waste of time. The plot and the situations the characters go through could have all been avoided if the characters decided not to go inside an abandoned lab; Which is funny since only one character decides not to trespass the lab itself.
Inside the lab, there's a man who's strap in chair with a bunch of cables connected to him. Supposedly, this man is able to possess anyone in the lab when they fall asleep, but it's never fully explained. Then it follows your typical slasher flick with the characters dying one by one until one survives.
Seriously, this movie is very stupid. The characters are stupid, the situations are stupid, and the plot is stupid. There is only one unintentional funny scene where one of the characters are possessed and is chasing the others. They outrun him and the character in the lead goes inside a room, locks the door and leaves the others outside. The characters are desperately trying to tell the other character to let them in, only for her to stare at them like an idiot through the door window and decide to let them in until the possessed friend gets near.
Apart from that scene, this movie is not worth watching.