Cassie Kramer and her younger sister, Allie, learned the hazards of fame long ago. Together, they’d survived the horror of a crazed fan who nearly killed their mother, a former Hollywood actress. Still, Cassie moved to L.A., urging Allie to follow. Allie, finally free of small-town Oregon, is just that little bit more beautiful, also proved to be more talented—and driven. Where Cassie got bit parts, Allie rose to stardom. But now her body double has been shot on the set of her latest movie—and Allie is missing. Police discover that the last call to Allie’s phone came from Cassie, though she has no recollection of making it. Instead of looking like a concerned relative, Cassie is starting to look like a suspect—the jealous sister who finally grew sick of playing a supporting role. As the tabloids go into a frenzy, Cassie ends up on a Portland psych ward.