Marie-Octobre is a 1959 French drama mystery film directed by Julien Duvivier and starring Danielle Darrieux, Bernard Blier and Robert Dalban.

The entire action takes place in real time over 99 minutes.

It is also known by the alternative title Secret Meeting[2] The film was remade in 2008 by director Josée Dayan, starring Nathalie Baye.

[3] A group of ex-resistance fighters are brought together by Marie-Octobre, the code name of Marie-Helene Dumoulin (Danielle Darrieux).

The search for the traitor puts each personality in the spotlight – and also that of the killed leader, Castille.