The Man Who Finally Died

What a strange movie this turned out to be. I found the conclusion most unsatisfying considering the histrionics from the majority of characters, particularly from the lead Baker and the Inspector (Portman) who swung inexplicably between moods of benevolence and vile-temperedness. Who was in whose grave and who wasn't buried at all? Was Cushing's character that of a mad scientist or a loyal and concerned friend of Baker's father? Characters take turns at pointing a gun at each other, none ever convincingly indicating they would actually use it! After all the intrigue and menacing dialogue (and lots of it) the explanation of the scientist (who wanted to be a nonentity) towards the end of the film just left me bewildered. Maybe he should have been the one pushed off the train?