A paranoid housewife finds that her worst fears are merely dwarfed be the terrifying reality of her dangerous obsession in director Ann Turner's psychologically bent study in fear starring Susan Sarandon, Sam Neill, and Emily Blunt.
Convinced that her husband's beautiful co-worker Mara (Blunt) is seeking to rob her of her family and steal her identity, Sophie Hartley (Sarandon) finds nothing but incredulous stares when she voices her concern to her disbelieving family and friends.
As Sophie struggles to maintain her slipping sanity and the grip of paranoia continues to tighten its constricting grip, her acute obsession finds Sophie becoming her own worst nightmare.