When Catherine (Julianne Moore), a successful doctor, begins to question her husband David's (Liam Neeson) fidelity, she sets out to resolve her suspicions with the help of an alluring young woman, Chloe (Amanda Seyfried). Soon caught in a web of sexual desire, Catherine finds herself on a journey that places her family in great danger.

  Canadian Connection: Partly filmed in Toronto. Director Atom Egoyan is Canadian.