Agent emmanuel ritter investigates a series of homicides on the border between mexico and the united states. To stop the slaughter, ritter will have to start by facing his own demons. Starring joaquín cosio, tobin bell and tate ellington. Directed by emilio portes.   special agent emanuel ritter leads a police investigation into a series of shocking deaths. But after a priest from the vatican finds a link between the murders and an ancient demon, a descent into horror ensues.