Film Title wanted please

[Brizpete]

I'm trying to find the name of a film - a suspense thriller possibly black and white from the Sixties or early Seventies.

The plot is along the lines of a female driver picking up a male hitch-hiker. Throughout the film we see newspaper headlines of a series of murders which look as if they may have been committed by the hiker.

There is a scene that I particularly remember shot in the old Tollgate CarPark at the bottom of the M32 in Bristol - the car going up the series of spiral carpark ramps.

SPOILER:
The twist in the film is that it's the woman rather than the man who is the killer.

Please help me put a name to this film.

[jon1968]

That�s Deadly Strangers I think, but it�s a male picking up a female hitchhiker.

[Brizpete]

Yes, that sounds like it.
Thanks very much.

[shylock73]

It`s called `The Hiker`