Between Them (French: Toutes les deux) is a 2021 Canadian romantic comedy film, written and directed by Noël Mitrani.
[2][3] A brilliant professor of Russian origin, Dimitri, is obsessed and convinced that his wife Lucie is cheating on him with her coworker, Horster.
Valérie forces a local drug dealer to steal Lucie's phone, intending to return it herself.
Valérie poses as "Beatrice" and meets Lucie again who eventually agrees to be photographed, and they have a picnic date which ends in sex.
Valérie discuss the investigation with Dimitri at her office and reveals to him that Horster is gay, which convinces him that his wife is faithful.