Cordelia ia a troubled, damaged soul who is only just recovering after some unnamed trauma; she is an actor rehearsing a play and comes to stay in a creepy London mansion flat occupied by her twin sister Caroline and Caroline’s boyfriend Matt. When they leave her alone there Cordelia strikes up a friendship with Frank the charming, but strange and unreliable young man they can hear practising his cello in the upstairs flat – a relationship which quickly becomes very disturbing.
Antonia Campbell-Hughes
as Cordelia / Caroline
Johnny Flynn
as Frank
Catherine McCormack
as Kate
Joel Fry
as Matt
Anna Danshina
as Natasha
Michael Gambon
as Mr. Moses
Drew Edwards
as Cab Driver (uncredited)
