Couple Realizes They Are Dead When They See Their Own Bodies

by Barb

I saw a movie set in the last 60's or early 70's in England about a couple driving to an old house that the woman inherited from her aunt.

As they were driving they were almost killed in a car crash. When they are in the house the woman sees ghosts from the 1800's.

The movie ends with them looking at their dead bodies and realizing they died in the car crash. I think it has 'Nightmare' in the title, but am not sure.

Any idea what it is called?