Following the sudden and mysterious death of their father, a brother and sister return home to their sprawling New Orleans estate and encounter their unhinged stepmother, who will stop at nothing to gain control of their inheritance.

Cold Moon takes place in tiny Babylon, Fla., where the granddaughter of Clark’s character is murdered by a mysterious assailant, her body sunk into the black waters of the Styx River — the river where her parents disappeared from their boat a decade earlier. Suspicion falls on a duplicitous banker and his wealthy father, played by Stewart and Lloyd.

A cop who moonlights as a hit man agrees to kill the hated mother of a desperate drug dealer in exchange for a tumble with the young man's virginal sister.