I also saw this film this week. It was made in 2012 and is set in the single location of an isolated hospital that is home for two weeks for some volunteer pharmaceutical test subjects. The subjects come from different walks of life and are given a small dose of a medicine. Within hours things start to go wrong and the end result is not at all what the pharmaceutical trial intended. After several deaths the effects of the drug wear off and the remaining characters are left to pick up the pieces. I found this to be an entertaining film but not one with any great surprises.