When Kate Grant bid for a house unseen at the auction, did she get a bargain or more than she bargained for? There had been no mention of a sitting tenant, one who was under the impression he had more right to the house than she had. And if there had been, would she still have gone ahead with the purchase?

Then a stranger arrives at the house unannounced. What connection is there between him and the sitting tenant?

It is a spine chilling mystery, one that over the coming months unravels slowly.