US TV (ABC) Movie of The Week starring Claris Leachman (as Claire Stevens) and Michael Brandon (as Keith Miles), long before his Dempsey and Makepeace days.
Claire Stevens is recently separated from her partner and decides to get away from the problems with her partner by taking her annual trip to San Francisco to see her sister and her family.
...meanwhile just across town pscyhopath Keith Miles has just murdered his girlfriend in cold blood and flees the scene. By pure fate and deciding to take a chance Claire Stevens sees Keith hitching a ride to San Francisco and decides to get him a ride. With over 400 miles to go, Claire is completely unaware of what Keith has just done.
As their road trip continues and Keith begins to groom the susceptible Claire and you just know something is going to happen to her, it's simply a question of when, especially when he has the murder weapon still on him.
8/10 - this is right up my strasse, dodgy 70s US TV movie thriller with Michael Brandon in full pyscho mode. Add two other well known boats into the mix as plod on his daily, namely Cameron Mitchell and Henry Darrow (High Chaparral, 'Harry O' and loads of other parts) and you can't go wrong.
Well worth a watch this, no spoilers in the ending but I wouldn't wanna be stuck in a car with Michael Brandon.
If you search for this on a well known video sharing site at time of writing, you will find this in full.