When Henry realises that the house they have rented in Scotland for their holiday is haunted, he calls on Harvey Angell, - for there in a hidden bedroom he has found a young and unhappy ghost. And Harvey with his 500- kilowatt smile and Connecting Kit of curious gadgets is able to winkle out of the townspeople and particularly out of dour old Tom Troone the tragic story of the past which is the cause of all the unhappiness.