<Ul> <Li> English </Li> </Ul> <Tr> <Th> Box office </Th> <Td> $4.7 million </Td> </Tr> <P> The Killing of a Sacred Deer is a 2017 psychological horror film directed by Yorgos Lanthimos, from a screenplay by Lanthimos and Efthymis Filippou . It stars Colin Farrell, Nicole Kidman, Barry Keoghan, Raffey Cassidy, Sunny Suljic, Alicia Silverstone, and Bill Camp . The story is based on the ancient Greek play Iphigenia at Aulis by Euripides . </P> <P> The film follows a cardiac surgeon (Farrell) who secretly befriends a teenage boy (Keoghan) with a connection to his past . He introduces the boy to his family, who begin to fall mysteriously ill . </P>

Who wrote the killing of a sacred deer