In 1643 in Venice, Cavalli's new opera caused a sensation among the audience of the Teatro San Cassiano. L'Egisto takes its name from the piece's main character, an Arcadian shepherd who is misled by an ambiguous inscription into believing his love is lost. A succession of misunderstandings ensues, along with spectacular pieces of music, a scene of madness and a descent into the Underworld for this would-be Orpheus searching for his Eurydice. The sumptuousness of the music, which masterfully illustrates the emotions involved in a love quadrangle, offers Vincent Dumestre and his cast the opportunity to paint with dazzling colours and virtuoso strokes for this first great labyrinth of Baroque sentiment.

Cast:
- Egisto: Marc Mauillon
- Clori: Sophie Junker
- Lidio: Zachary Wilder
- Climene: Ambroisine Bré
- La Notte, Apollo: David Tricou
- Hipparco: Romain Bockler
- Aurora, Amore, Hora: Eugénie Lefebvre
- Dema: Nicholas Scott
- Bellezza, Fedra: Marielou Jacquard
- Hero, Venere: Caroline Meng
- Cinea, Semele: Victoire Bunel
- Didone, Volupia: Floriane Hasler