The Moth Diaries

The Moth Diaries (2011) is a gothic horror film you can watch online on iFILM, directed by Mary Harron — the filmmaker behind American Psycho. Set in an all-girls boarding school, it follows Rebecca, still raw from her father's death, as a pale and unsettling new student named Ernessa begins circling her closest friend.

Lily Cole plays Ernessa with an eerie stillness that makes you question what's real. Sarah Bolger carries the film as Rebecca, whose diary entries chart a slow drift between grief, jealousy and genuine dread. Sarah Gadon co-stars as Lucy, whose mysterious decline sits at the heart of the plot. Based on Rachel Klein's cult novel, the film leans into psychological ambiguity rather than cheap scares — boarding school rituals, nighttime corridors and the particular cruelty of teenage girls doing most of the work. Stream The Moth Diaries (2011) in full on iFILM.