Captain Laurence Weber and Lt. Chloe Guerin investigate when a body is found during an Art Noveau auction in Nancy.
| Actor | Role |
|---|---|
 Cristiana RéaliLaurence Weber | Laurence Weber |
 Sophie-Marie LarrouyÉmilie Croze | Émilie Croze |
 Constance DolléBéatrice Challe | Béatrice Challe |
 Romane LibertJulie | Julie |