Horror movie

This move was about a couple who had car trouble. Eventually (I think) the husband/boyfriend walks up the road it into town to try and get help. The wife/girlfriend (while pregnant) walks somewhere and finds a farm. This farm has a wife, husband, and two peculiar older sons. The only other things I can remember are that the wife at the farm (an old woman) wanted the woman’s child. The pregnant wife never sees her husband again and there’s a scene where the two older sons are burying him on the farm. Eventually the older woman ends up taking the pregnant woman’s child. I believe the old woman was a witch or there was something satanic going on. I’m not certain. That’s why I’m here. I want to say I watched it on Netflix, but again, idk. It’s been YEARS since I’ve seen it. I just remembered it being unique and actually creepy.

The two sons in the film do what their parents say when they are told to bury the body. It’s a really creepy scene. By older I mean they are in there 20’s-30’s. If I think of more detail, I will add it. Thanks :)