The beggar's pawn / John L'Heureux.

"The story of a family whose chance meeting with a stranger while dog walking slowly becomes an ominous invasion of their domestic lives. David and Maggie Holliss are an ordinary married couple about to ease into a comfortable, well-earned retirement while tending to three middle-aged children with whom they share an edgy relationship of love and resentment. Reginald Parker enters their lives when he saves their dog from being run over by a truck, and when asked how they can possibly thank him, he replies with a request for the loan of two hundred dollars. They lend it to him, gladly, and thus begins what will become for them and their family a nightmare that moves from comic resignation to stark tragedy."--Provided by publisher.