Glitch (2015)

James Hayes is a policeman from a small town who is called to the local cemetery in the middle of the night, after six people have inexplicably risen from the dead in perfect health. With no recollection of their identity, they are determined to find out who they are and what happened to them. James recognizes one of them and, together with the local doctor, Elishia Glass, fights to keep the case hidden from his colleagues, his family and the world. The six people are all connected in some way and the search begins for someone who knows the truth about how and why they returned.