A powerful yet restrained psychological thriller, MARTHA, MARCY MAY, MARLENE tells the story of a young woman rapidly unraveling amidst her attempt to reclaim a normal life. Escaping a harrowing experience as a cult member in rural New York, Martha (newcomer Elizabeth Olsen) seeks help from her estranged older sister Lucy (Sarah Paulson), though she is unable and unwilling to reveal the truth about her disappearance. With a mounting sense of dread, Lucy comes to realize that her sister's bizarre behavior may point to something much graver than an idiosyncratic personality.
Lost in a post-traumatic torment, Martha's memories trigger the chilling paranoia that her former cult is actively pursuing her. As her reality blurs with delusion, we realize that Martha (cult aliases Marcy May and Marlene) is lost in the eye of an emotional storm much larger than anyone could have suspected.