Sleepwalker (DVD)

1980s British horror. When a rich couple journey to the home of a brother and sister for dinner, they end up clashing with their hosts over their contrasting social and moral views. A destructive storm ruins their dinner plans so instead they go out to a restaurant where they meet the establishment's strange owner and his employee. As the foursome continue to argue over their differences, the tension builds and the night takes a blood-spattered turn for the worst.