A quiet young woman with a restless spirit, Thérèse (Academy Award®, Golden Globe® and Olivier nominee Keira Knightley) submits to a loveless life at the side of her weak and selfish husband… until she meets his childhood friend Laurent. Consumed by their desire for each other, Thérèse and Laurent dream of the day they can finally be together. When their overwhelming passion spins violently out of control, they realize that love can be a dangerous game, and sometimes there is no winner.