At their British girls' school in the late '60s, the charismatic Abbie (Florence Pugh) and the intense Lydia (Maisie Williams) were the best of friends. Following a medical crisis for Abbie, however, Lydia became strangely susceptible to faints...and their other classmates started following suit. Is it repression working itself out, or is the cause otherworldly? Atmospheric mystery co-stars Maxine Peake, Joe Cole, Morfydd Clark, and Greta Scacchi. 102 min. Widescreen; Soundtrack: English. Region Free