John Hough has given Tudor Gates' script a good pace and directed so that audiences can take it as straight horror or as a slight send-up.

Some moments of Gothic atmosphere though, don't quite dispel the feeling that much of the plot is devoted to developing situations where its leading ladies might be disrobed for the camera.

The rest of the costumed crew, led by that veteran horror hand, Peter Cushing, as the twins' witchhunting uncle, who chases the fanged Count and his retinue, hardly give Twins of Evil a good name.

An unusually silly ordeal, yet it’s difficult not to be amused by the violence, the vampire bloodshed, and the last-minute injections of bouncing cleavage.