Movie title from the early 80's about college men from the 30's or 40's
It involved several men who had gotten together for a mini-reunion. They had gone to college together sometime in the 1930's or 40's. They had gone out drinking, and they got involved with a "loose" girlfor the evening. I forget the whole plot but I think she ended up getting knocked out by one of them accidentally, he thought he killed her, and to cover all of this up, they put her in the backseat of a car and pushed the car into a lake or river. All these years later, after a series of events, they realized that they needed to bring this car back to the surface and it doing so, they determined that she in fact had NOT been dead when the car first went under. When they opened up the back door, she, who had been "whole" in the backseat, ended up disintegrating. Anyone remember the name of this movie?
