Warning: This contain spoilers!

Very bad movie.
This movie takes about one third of the time to start and when it does it is only a little bit better. The characters are not all total worthless idiots but I still did not care about any of them except the man who lost one hand and the sister with the short hair. I also knew from the start that the firefighter was one of the criminals. It does not have any suspense. There is gore but it is not disgusting. I do like that the last survivor of the group gets to kill the impersonator, she did it in a cool way too but she was an idiot to not take his torch (or whatever he had to have light) after to get out but I guess it was not that stupid since she did got out. She did end up dying but I'd take that death before all the other deaths (still not a nice choice but again it could of been worst).
The costumes, sets and story are average. The acting, directing, editing, makeup and music are bad. The cinematography is very bad. The special effects and script are horrible.