Disturbed

Your colleague and friend, PC Richards has been missing for over a week. Her last known location is an old abandoned hospital on the outskirts of town which she had gone to investigate one night after work. Her obsession with a closed kidnapping case had left her paranoid and wanting to investigate more. You decide to go to the abandoned hospital to see if you can find any clues as to where she may have gone. As you enter the building you realize you have been trapped by a crazed killer! A deadly gas begins to sweep through the hospital. You have one hour to save yourselves...