Caddo Lake, with cypress and ancient oaks dripping with Spanish moss, provides the perfect backdrop for murder. Lillian Prestridge and her husband Bill leave the security of their gated community in the heart of East Texas. Lillian looks forward to a peaceful vacation in their brand new RV. The murder of Lillian's Mah Jongg partner prompted her desire to seek refuge in a new environment. Their first stop is Caddo Lake in the Cypress basin of northeast Texas. Caddo Lake has existed from time eternal and is home to unusual events, including its violent origin. Lillian is puzzled by but ignores the warning: "You'd better be careful. Crazy things have been happening out at that RV Park at Caddo Lake." Lillian delves into solving the strange events - an explosion and murder. Who is the person or persons leaving dominoes and curses on the bodies of one murder victim after another? And what does the explosion have to do with the game of dominoes or murder?