Gatekeepers (2017)

Twenty years ago a team of scientists attempted to contact an ancient race of beings. They failed but managed to inadvertently allow one into our world. That's when the killings began. Twenty years later Detective Mike Gregg is coming apart at the seams. His devotion to alcohol and one nighter's cost him the only thing that he truly cares about. His family. Now he's up to his neck in dead girls, each picked apart in gruesome fashion. But when Richard Lyles arrives, a strange man with a stranger past to explain what the Detective is really chasing, even a veteran homicide investigator like Mike Gregg isn't prepared for the nightmare coming his way.