Satan's Dog is the British title for Play Dead, the VHS came with striking artwork but as is so often the case the film did not live up to the packaging. Yvonne de Carlo plays a rich but bitter woman who imports a large Rottweiler from Europe called Greta and uses black magic to control her, killing people for her own greedy ends. If you are hoping to see gory dog on human attacks then you will be disappointed. Greta is a very intelligent dog and doesn't want the deaths traced back to her, for example while a woman is taking a bath the clever dog drops an electrical appliance into the water and zap! Having said that a couple of deaths do see some of the red stuff. The black magic scenes don't have much bite either. Much better is the movie Devil Dog (1978)