Clarissa, worried that she has no memory of her evening with her handsome stranger, is afraid that she has been drugged without her knowledge and urgently asks Josephine to take a blood test. But his test results revealed only a high blood alcohol level. On the other hand, those of Rançon, the second victim still hospitalized, show that he did ingest ricin, as did the first victim, Franquin, who was sitting next to him on the plane. So there was indeed a poisoner on the plane. Investigators searched for the flight crew and, with the help of Jackson, who remembered the purser, Amandine Richaud, they questioned her. (thetvdb.com)