Sometime in the 70s, I saw a movie I can barely remember. I recall a scene on a train, in which a man had a briefcase with a head in it. Later I think the same head was found in a refrigerator. It may have been a comedy, or, of course, a horror movie. For some reason I remember someone looking like Jerry Stiller being in it, but I was under 10 at the time. Does any of this sound at all familiar, even if vaguely?

Possibly Carnage (http://www.imdb.com/title/tt0061520/reference)