Please help me find some obscure weird thriller about a woman who marries some shady guy.

I have not seen this supposedly American film myself. I just want to help one girl who complains that she has been looking for it for ten years without success. It was filmed presumably in the 90s.According to the plot, a young single mother gets married. Her husband takes her to his house, located in the middle of nowhere. Some strange things begin to happen. She constantly has nightmares. Some shaggy one wanders around, and someone’s ominous whisper is heard. In the whisper you can make out the name Caroline ( at least that's what she remembers). Maybe this is her name.Besides, the heroine found some kind of workshop/shed in the forest or in the garden. And there were strange, creepy pictures in it, perhaps drawn by this husband of hers. It is possible that one of the paintings depicted the burial of a child (most likely an infant) There was also an episode with a death in the stable. Some woman, either his mother or his nanny, fell into a trough and was electrocuted. In addition, they had a child together. It died. Then (as far as this girl who is looking for the film remembers) it turns out that this psychotic husband killed this common baby of theirs. No matter how much I Googled, the result was zero. But nevertheless, hope dies last. Thanks in advance for any clues.