Blood Suckers from Outer Space

Blood Suckers from Outer Space is a movie starring Dan Gallion, Thom Meyers, and Charles Coburn. Farmers in Texas become brainwashed bloodsuckers.
A mysterious and invisible alien presence has landed in rural Texas and has started turning the nearby townspeople into white-faced, bloodthirsty killers. As the local authorities begin to investigate the strange and violent goings on, a photographer and his girlfriend find themselves trapped in the midst of an unexpected rural bloodbath, which seeks to turn them into another pair of bloodsuckers from outer space...