70's English Haunted House Film With Witch Screams

by Sophia
(California, USA)

Here's what I remember of this 70's movie:

A couple driving to a home they have just inherited in the country are visited by the ghost of a girl on the country road. Beliving there's a real person on the road, they get off track and die in the accident.

The next in line inherits the house only to have a series of horrific events follow them, such as finding a guy's wedding ring on the ground and the protagonist hearing screams of witches who had been burned eons before.

This was the most horrific film I had watched, and wish to watch it again to see if it's as bad. A big thank you!