When Lucy’s life partner, war reporter Michael Burleson, suddenly leaves the U.S. to take a job re-establishing the cable news network office in Iraq, Lucy is alone with their four-year-old son Henry on her isolated Malibu Ranch. Michael’s sweet but unstable, recovering addict daughter, shows up looking to meet her baby half-brother and establish a relationship with Lucy. Despite Michael’s warnings, Lucy wants to re-kindle family ties and hires the girl to help care for Henry when Lucy is working. Weird things begin to happen at the ranch—her beloved horse is bitten by a rattle snake not native to the region, the animal enclosures are vandalized, and a loaded gun is found next to Henry’s swing set. Lucy doesn’t know that the daughter has fallen under the spell of a sexy, snake-handling cult leader who wants to get rid of Lucy, take her ranch and her son.