113 mins | Thriller | April 7, 1973
113 mins | Thriller | April 7, 1973
| IMDb rating | 6.2 |
| Producers | Euro International Film, Les Films de la Boétie, Rialto Film |
| Original title | Le Serpent |
| Directors | Marc Grunebaum, Lucile Costa, Henri Verneuil |
| Writers | Gilles Perrault, Pierre Nord, Henri Verneuil |
as Col. Alexi Vlassov
as Alan Davies
as Philip Boyle
as Mrs. Annabel Lee
as Polygraph interrogator
as Computer Programming Director
as Lucien Berthon
as Tavel
as Lepke
as Deval
as Suzanne
as Kate Cross
as French Diplomat
as Mercadier
as inspecteur Joss
as Jeannine Santelli
as Gardener
as Mrs von Strelitz
as Lefèvre
as Debecourt
as Tatiana Vlassov
as Narrator (voice) (uncredited)