The Burrow (2015)

Odile lives alone. Afraid that someone might enter her flat when she’s not at home, she enters a video surveillance online community, in the hope that users will keep an eye on her apartment and inform her in case of unexpected intrusion. And the intrusion happens: dark smudges appear on the walls. Furious, she decides to leave the community. While she tries to fight against infiltrations, she realizes that she is still on watch…