England, 1969. The fascinating Abbie and the troubled Lydia are great friends. After an unexpected tragedy occurs in the strict girls' school they attend, a mysterious epidemic of fainting breaks out that threatens the mental sanity and beliefs of the tormented people involved, both teachers and students.
Maisie Williams
Maxine Peake
Greta Scacchi
Monica Dolan
Mathew Baynton
Florence Pugh
Joe Cole
Morfydd Clark
Anna Burnett
Hannah Rose Caton
Evie Hooton
Katie Ann Knight
Lauren McCrostie
Elizabeth Marsh
Hannah Stokely
Guy Morris
Katherine Peat
Ben Kerfoot
Jiggy Bhore
Crissy O'Donovan
Simon Paisley Day
Ellie Bamber