The Bacchae (Ancient Greek: Βάκχαι, Bakchai; also known as The Bacchantes) is an ancient Greek tragedy by the Athenian playwright Euripides, during his final years in Macedonia, at the court of Archelaus I of Macedonia. It premiered posthumously at the Theatre of Dionysus in 405 BC as part of a tetralogy that also included Iphigeneia at Aulis and Alcmaeon in Corinth, and which Euripides' son or nephew probably directed. It won first prize in the City Dionysia festival competition.

The tragedy is based on the mythological story of King Pentheus of Thebes and his mother Agauë, and their punishment by the god Dionysus (who is Pentheus' cousin) for refusing to worship him.

Iphigenia in Aulis (Ancient Greek: Ἰφιγένεια ἐν Αὐλίδι, Iphigeneia en Aulidi; variously translated, including the Latin Iphigenia in Aulide) is the last extant work of the playwright Euripides. Written between 408, after the Orestes, and 406 BC, the year of Euripides's death, the play was first produced the following year in a trilogy with The Bacchae and Alcmaeon in Corinth by his son or nephew, Euripides the Younger, and won the first place at the Athenian city Dionysia.

The play revolves around Agamemnon, the leader of the Greek coalition before and during the Trojan War, and his decision to sacrifice his daughter, Iphigenia, to appease the goddess Artemis and allow his troops to set sail to preserve their honour in battle against Troy. The conflict between Agamemnon and Achilles over the fate of the young woman presages a similar conflict between the two at the beginning of the Iliad. In his depiction of the experiences of the main characters, Euripides frequently uses tragic irony for dramatic effect.

Greek director Mihalis Kakogiannis based his 1977 film Iphigenia (starring Irene Papas as Clytemnestra) on Euripides's script which I viewed on Netflix. This is an excellent and gripping depiction of the unusual and troubling plot.

Text at The Internet Classics Archive
http://classics.mit.edu/Euripides/iphi_aul.html

Rhesus (Ancient Greek: Ῥῆσος, Rhēsos) is an Athenian tragedy that belongs to the transmitted plays of Euripides. There has been debate about its authorship. It was understood to be by Euripides in the Hellenistic, Imperial, and Byzantine periods. In the 17th century, however, the play's authenticity was challenged, first by Joseph Scaliger and subsequently by others, largely on stylistic grounds. Modern scholarship agrees with the classical authorities and ascribes the play to Euripides.

Rhesus takes place during the Trojan War, on the night when Odysseus and Diomedes sneak into the Trojan camp. The same event is narrated in book 10 of Homer's epic poem, the Iliad.