We watched the The Killing of a Sacred Deer 

The Killing of a Sacred Deer" is a psychological thriller film directed by Yorgos Lanthimos and released in 2017. The film follows the story of a young boy who, after being befriended by a surgeon, becomes determined to punish the surgeon's family for a perceived wrongdoing. The film received positive reviews and was nominated for several awards, including the Best Original Screenplay award at the 90th Academy awards

Once we realised the relationship between the film plot and the Greek myth of Iphigenia .In Greek mythology, Iphigenia was the daughter of Agamemnon and Clytemnestra. In the play "Agamemnon" by Aeschylus, Agamemnon is told by the god Apollo that he must sacrifice Iphigenia to ensure a safe voyage to Troy. The play "The Killing of a Sacred Deer" takes its title from this myth and features several references to it throughout the film. In the film, the character of the surgeon is named Steven, a reference to the character of Agamemnon, and the character of the young boy is named Martin, a reference to the character of Apollo.