Spinster sisters, a dominant father, and a plan for killing- combine to place Lucy and Marcia, each in their own particular --and peculiar -- worlds, on the spot of murder unaccomplished. Secure in their brownstone house in New York's Gramercy Park, they pursue the quiet way, know each other's vulnerabilities, and -- menaced by a stranger, spy and plot to a mutual finish. Stress and situation in welcome literacy.