Six people travel by overnight train from Marseilles to Paris. When they arrive, one of them, a young woman, is found dead in a sleeping berth. The police, led by Inspector Grazzi, investigate the other five passengers, suspecting that one among them was responsible. However, as the investigation is stepped up, the others start turning up dead. It's up to the remaining two to solve the case, lest they become the next victims.
as L'inspecteur Grazzi
as Le commissaire Tarquin
as Éric Grandin, étudiant vétérinaire
as Daniel
as Bambi
as Eliane Darès, l'actrice éventée (Victime #4)
as Jean-Loup Gabert, inspecteur stagière de Grazzi
as René Cabourg, l'employé besogneux (Victime #2)
as Georgette Thomas, assassinée (Victime #1)
as Bob, l'amant sincère de Georgette Thomas
as Mme Grazzi
as Mme Rivolani
as Le beau-frère de Georgette, mari soumis
as Mme Garaudy
as La sœur de René Cabourg
as Le contrôleur du train phocéen de nuit
as La sœur "mauvaise langue" de Georgette
as Un inspecteur, sous les ordres de Tarquin
as Un inspecteur, sous les ordres de Tarquin
as M. Rivolani, passager du compartiement (Victime #3)
as L'inspecteur Antoine
as Un inspecteur, sous les ordres de Tarquin
as Le vétérinaire titulaire, chargé de cours (uncredited)
as Une infirmière à l'école vétérinaire (uncredited)
as Un inspecteur au bistrot (uncredited)
as Un porteur à la gare de Lyon (uncredited)
as Un agent de police (uncredited)
as La concierge d'Eliane (uncredited)
as Une pocharde (uncredited)
as Le frère d'Eliane (uncredited)
as Le policier marseillais (voice) (uncredited)
as Un journaliste (uncredited)
as Un inspecteur au café (uncredited)
as Un employé de la SNCF (uncredited)
as L'homme qui embrasse une femme à la brasserie (uncredited)
as Une personne auditionnée dans les locaux de la Police Judiciaire (uncredited)
as Un travesti près du kiosque à journaux (uncredited)
as Un agent de police (uncredited)
as Une "femme" au bistrot (uncredited)
as (uncredited)
as Un amant de Georgette (uncredited)
as Le patron du bistrot (uncredited)
as Le médecin légiste (uncredited)
as (uncredited)
as (uncredited)
as (uncredited)
as Le commissaire Tuffi (uncredited)
as La supérieure hiérarchique de Bambi (uncredited)
as L'employée de l'hôtel Arizona (uncredited)
as Un inspecteur (uncredited)
as Le poivrot arrêté, dans les locaux de la Police Judiciaire (uncredited)
