Keira Knightley is returning to the West End to star opposite Elisabeth Moss in Children's Hour.
The Never Let Me Go star and the Mad Men beauty will play teachers at an all girls' boarding school who are accused by a wayward pupil of having a lesbian relationship.
Keira was last on stage in The Misanthrope at the Comedy Theatre earlier this year and the 25-year-old Oscar-nominee has said she wants to do a play every 18 months or so, while continuing her Hollywood career.
Elisabeth, who is set to make her West End debut, is best known as Peggy Olson in the award-winning television series Mad Men.
But she has also appeared in films Get Him To The Greek, Did You Hear About The Morgans? and Girl, Interrupted.
The Children's Hour will be directed by Ian Rickson, whose most recent production was the critically acclaimed Jerusalem, by Jez Butterworth, starring Mark Rylance.
The Children's Hour was last produced in London by the National Theatre in 1994 and was written by Lillian Hellman in 1934.