Six people travel by train overnight from Marseilles to Paris. When the train arrives at its destination, one of the passengers, a girl, is found dead in a sleeping berth. The police led by Inspector Grazzi investigate the other five passengers, suspecting that one of them was responsible. However, as the investigation is stepped up, the other passengers start turning up dead. It is then up to the last remaining two to solve the case, before 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 M. 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 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)