Shelter (2010)

A forensic psychiatrist discovers that all but one of her patient's multiple personalities are murder victims. She will have to find out what's happening before her time is finished. - Santiago

After the death of her husband, Dr. Cara Harding's faith in God has been shaken, but not her belief in science. In an attempt to get her more open to accepting unexplainable psychiatric theories, her father introduces her to Adam, a patient with multiple personalities who also takes on some of the physical characteristics of his other personalities. But Cara quickly discovers that his other personalities were murder victims and the more she finds out about Adam and his past, the closer she and her loved ones are to becoming murder victims themselves. - napierslogs

Dr. Caroline Jessup does not believe in multiple personality disorder. Her father Dr. Harding challenges her beliefs by introducing her to a patient of his, whom seemingly disproves that. She first meets David Bernberg in a wheelchair and after a series of questions demands to know why her father has asked her to meet him. She is later introduced to Adam Saber, and Wesley Crite. All the people whom this patient claims to be have already died. She later finds that he is really a doomed faith healer Reverand Christian Moore who was punished by the mountain people for his hypocrisy. He must not harvest the souls of the faithless, and Caroline must attempt to stop him from collecting her daughter's soul.