IFC Films will release the gothic film The Moth Diaries from American Psycho director Mary Harron, based on the novel by Rachel Klein which stars Lily Cole, Sarah Gadon, Sarah Bolger, and Scott Speedman. The Moth Diaries played earlier this year at the 2011 Toronto and Venice International Film Festivals.

Adolescence is and always will be a time of intense emotional confusion, especially if you spend it in a closed environment. That’s the case with Rebecca (Bolger), a young girl haunted by her father’s suicide, who is a student at an exclusive female boarding school. She pours her heart out in a diary, much of it focused on Lucy, her beloved roommate. Their relationship changes drastically with the arrival of a mysterious new student, Ernessa (Cole). As Lucy abandons her for this new girl, Rebecca becomes consumed with thoughts of jealousy and suspicion–Ernessa is dangerous, evil, a vampire. Is there any truth to all this or is Rebecca slipping into insanity?