From January 24 to February 23, Alessandro Scarlatti's rare work "Il Primo Omicidio" is being given for the first time at the Palais Garnier. Meditating on the origin of Evil, director Romeo Castellucci wanted to give two faces to fratricidal Cain - those of mezzo Kristina Hammarström and the young Hippolyte Chapuis - to better express all the complexity of this accursed figure, the father of the humanity. Poet and radio creator, David Christoffel decided to interview the two performers and subject the murderer to an irresistible interrogation.