High Quality Content by WIKIPEDIA articles! The Flies (known in the original French as Les Mouches) is a play by Jean-Paul Sartre, written in 1943. It is an adaptation of the Electra myth, previously used by the Greek playwrights Sophocles, Aeschylus and Euripides. The play recounts the story of Orestes and his sister Electra in their quest to avenge the death of their father Agamemnon, king of Argos, by killing their mother Clytemnestra and her husband Aegisthus, who had deposed and killed him.