Bill and Janet Nelson move into a new home. They come to believe that the young boy who lives next door intends to kill them.
Bradford Dillman, Diana Hyland - The new couple
Mickey Sholdar, Ed Asner - The boy, his father
This was yet another one that shows that Hitchcock truly was a master of suspense. Little odd things start happening, and the couple is second-guessing themselves. They try to get along with the boy, but he is distant and unresponsive. Then he threatens to kill their dog, and things escalate quickly...
Bradford Dillman was the actor's real name. He said "Bradford Dillman sounded like a distinguished, phony, theatrical name -- so I kept it."
there doesn't seem to be anything here