A mesmerizing journey into the inner workings of an unstable mind, this atmospheric drama stars Susannah York as Cathryn, a children's book author who -- while trying to sort out her life -- finds fantasy and reality colliding in an endless delusion. Sensing her angst, Cathryn's husband (Rene Auberjonois) whisks her off for a weekend at their secluded country home, where her increasingly distorted visions slowly draw her into madness.