Movie description: "Intruder". Master Shadrack wanted to give his sub, Mistress Violet, an unusual treat, so he takes her to a secret 'mad science' laboratory. After jimmying the door lock, he brings her in to the lab to explore. To his delight, there are all kinds of unusual toys and after getting her naked and on the examination table, proceeds to experiment with each device, ultimately bringing her to an explosive orgasm - with a twist.