It's not very often that you come across an horror western, but this effort from Michael Butts and an almost entirely unknown (to me anyway) cast tries quite hard to mix the two genres. That blending has only limited success, to be honest, but the production looks good and there is a degree of grittiness that fits well with the lively, occasionally violent, plot. That centres around "Sully" (Isaiah Stratton) who tries after the end of the American Civil War to settle down in Texas with his wife and young daughter. It isn't that simple, though. He is trying to convince his youngster that…