To me the standout of this film were the performances. But first looking at the movie itself it was a slow build up in the first half hour till charles comes onto the scene. I'm not sure though this film works as a thriller or mystery its more of a dark drama and if labeled as such would be better understood. But as based on real life films go this does at atleast do the job and is still an interesting watch. Eddie redmayne playes charlie, the nurse the film is about. He comes off as creepy and off putting making it a great role that he filled well. The same goes for jessica chastaine as amy, the other nurse who suspects something is up after a pateints death. Her performances is just as good and both are really good. Overall an interesting film to watch. Little slow in places but overall ok.
