Based on the true nightmare that left the city of Los Angeles paralysed for months, this is the chilling tale of Richard Ramirez, the serial killer known only as the Nightstalker - a psychotic possessed by demons who spent his nights raging through the street, terrified with paranoia and looking for blood. As women and men are randomly butchered in their homes, one rookie cop, Gabriella Martinez, vows to take him down. Hot on his trail, Martinez puts her life directly in the life of fire and comes face to face with the menacing beast.