This first entry in a new thriller series takes readers across the rooftops of Paris to the Venise Carnival in pursuit of a serial killer.

After discovering the lifeless body of a famous Instagrammer, Paris major crimes detective Carmen Ricci is forced to confront her superiors to prove it's a murder and not mere accident. Several more macabre discoveries prove her right. Who is this serial killer? What are their motivations? From the rooftops of Paris to the well-hidden secrets of Venetian palazzos during the Carnival, Carmen—copa and femme fatale all at once—will have to go all out on her investigation despite her tumultuous love life.