The Killing of a Sacred Deer is a 2017 absurdist psychological horror thriller film directed and co-produced by Yorgos Lanthimos, who also co-wrote the screenplay with Efthimis Filippou. It stars Colin Farrell, Nicole Kidman, Barry Keoghan, Raffey Cassidy, Sunny Suljic, Alicia Silverstone, and Bill Camp. It follows a cardiac surgeon who introduces his family to a teenage boy with a connection to his past, after which they mysteriously begin to fall ill.

Plot

After performing an open heart surgery, Steven Murphy, a cardiothoracic surgeon in Cincinnati, goes to a diner where he meets 16-year-old Martin Lang, whose father died a few years earlier. Steven goes home to his wife Anna and their children Kim and Bob. Steven invites Martin to meet his family, and Martin gets along with everyone, especially Kim. That night, Martin invites Steven to his house for dinner the next day.