A man obsesses with the story of Snow White since he was a kid. The idea of finding a beautiful corpse in a glass coffin to do as he pleases turned him on. He fantasized about impregnating the body in the coffin but of course it was not possible in real life.
So he did the next best thing. He abducted pregnant women, killed and then changed them into the snow white costumes he envisioned and then store their bodies in specially made glass coffins that he kept in a large freezer beneath his house. (yes, he is a rich man). There, he visits whomever he wishes to have his way with every night.
By the time he was caught, he had taken 3 victims.