2x4 - Astrid et Raphaëlle

A trainee is found dead in the huge organ of the Maison de la Radio. Astrid and Raphaëlle investigate the very heart of the instrument and meet an organist prodigy and her cantankerous old teacher. Things get tough when a second lifeless body is found near the organ. The modus operandi is the same... A track is beginning to emerge: what if it was the music that kills?