Strange movie with a hand going through a meat grinder, but it didn't actually happen [closed]

My uncle once rented a strange movie for my cousin and me to watch. It was entirely not appropriate for our age, and we talk to this day about how weird it was. We saw it probably 20-25 years ago, and I don't think it was new at the time (although I may be wrong about that).

Here's the bits I can remember: A couple goes is going to visit a man's father. On their way there they are involved in a car accident (they swerve to avoid someone in the road, I believe). The wife wakes up at the father's house, but the husband is nowhere to be found. The father's house is large .

As the movie progresses, it is revealed that the father is going to try and have a child with the wife.

Memorable scenes:

• A man's hand is fed through a hand cranked meat grinder, but it doesn't actually happen.

• The father's doctor makes a comment that the father does not like after given a check up to see if he could still father a child. The father's assistant/butler then kills the doctor by taking one of the doctor's scalpels, threatening him with it, forcing him to strip, tying him down to a table, and feeding him to rats (from a cage on the doctor's stomach).

• Towards the end, the husband is rescued from a coffin.

• The house catches on fire and during the fire, the father's face is burnt, with his skin sticking to a hot metal light (or something like that).

At the very end, the wife wakes up, revealing it may have been a dream all along.