Dr. Steven (Colin Farrell), a charismatic surgeon, is forced to make an unthinkable sacrifice after his life starts to fall apart, when the behavior of a teenage boy (Barry Keoghan) he has taken under his wing turns sinister.
The Killing of a Sacred Deer is a 2017 psychological horror-thriller film directed by Yorgos Lanthimos, from a screenplay by Lanthimos and Efthymis Filippou. It stars Colin Farrell (Fright Night [2011]), Nicole Kidman (The Others [2001]) and Alicia Silverstone (Hideaway [1995].