Perhaps Ralph was meant to be a ghost bully, perhaps the curly haired boy is young Charlie, perhaps Charlie switches bodies with his own son, or perhaps there’s time travel invovled. We doubt that even Captain Kirk could sort out all those perhapses in this TV version of Ray Bradbury’s story starring William Shatner. But clarity can be had if you read the original story, which takes about the same amount of time as watching the TV episode but shows the rich inner life of Charles Underwood and leaves no ambiguity about what’s up with “Ralph.”