1885, a time of industrial revolution and sexual frustration. Pricilla, a beautiful woman who knows what she wants... and wants it all the time. Robert, a scientist and inventor - unfortunately, the only thing he can keep on his mind is his work. Ah, but what does a scientist love more than a problem to solve? Some gears, some springs, the proper appendages, a little extra lubricant, and a little extra love and voila! Chester 5000 is born. Chester is the perfect tool to soothe Pricilla's desires, but what if Chester is more than just a machine?