The young artist Wanda Leibovitz comes to Paris, hoping to forget unfortunate love. Soon after arrival directly at the station Wanda meets the mysterious old woman suggesting to rent at it the room (whom the old woman, allegedly, held ready for the now deceased sister). Wanda doesn't know yet that this room will change all her life shortly after it slightly opens a mysterious forbidden door.
Unfortunately the movie Threshold of the Void is not yet available on HBO Max.
| Directing | Jean-François Davy | Director |
| Writing | Alain Gerber | Screenplay |
| Writing | André Ruellan | Screenplay |
| Writing | Jean-François Davy | Screenplay |
| Production | Guy Neyrac | Producer |
| Editing | Cécile Decugis | Editor |
| Editing | Nicole Gauduchon | Editor |
| Art | Jean-Claude Philippe | Production Design |
| Art | Jean Galland | Set Decoration |
| Production | Jacques Garcia | Production Manager |
| Directing | Jean-Denis Berembaum | Assistant Director |
| Directing | Jacques Drezner | Assistant Director |
| Directing | Alain Quercy | Assistant Director |
| Art | Michel Caputo | Assistant Production Design |
| Sound | Gérard Barra | Sound |
| Sound | Louis Devaivre | Sound Effects |
| Sound | Jean Nény | Sound Mixer |
| Camera | Jean Chiabaut | Camera Operator |
| Lighting | Gabriel Delafons | Electrician |
| Directing | Natalie Perrey | Continuity |
| Crew | Juliette Villard | Thanks |
| Writing | André Ruellan | Novel |
| Sound | Jack Arel | Music |
| Camera | Louis Soulanes | Director of Photography |
