"When Jonathon Roth and his family are invited by their neighbors, the Beasleys, to join them at a luxury retreat in Cozumel, who can refuse? It's the perfect winter getaway. Relaxing on the beach, gourmet food, sightseeing, and free accommodations. But if it sounds too good to be true, it is. Villa Sara de Calakmul, owned by mysterious tycoon Jacob Calakmul, is more isolated compound than private resort. Armed guards patrol the jungle perimeters....