Remember back in the 80’s when there was only one HBO channel and when there was a span between movies they were filled with short features?

There was one I can not get outta my head but can not find. It was British made, about a girl that is driving down the rode late night in the rain. She sees someone walking in the road, stops and picks the old woman up. She then spends most of the feature trying to avoid being the hitchhikers victim. The girl stops the car, claims there is something wrong with it and asks the hitchhiker to check on it. when the hitchhiker leaves the car, she floors the car. When she cars to a phone she calls her boyfriend to come and pick her up. The boyfriend drives to get her, sees the same hitchhiker and picks her up. The short ends indicating the hitchhiker killed the guy, as the car just stops at a corner, the hitchhiker gets out of the car but the car never moves.

Anyone know the name of this short or where I can watch it??