Overview
Who You Think I Am is a 2019 French-Belgian drama film directed by Safy Nebbou, starring Juliette Binoche, François Civil and Nicole Garcia.
Plot
Claire, a middle-aged professor of French literature, shares custody of her two sons with her ex-husband Gilles. She carries on an affair with the younger Ludovic, who obviously sees it as more casual than Claire. He soon distances himself from her, and when she calls, his roommate Alex answers the phone and pretends Ludo is out.
Claire creates a fake persona, "Clara Antunès", on Facebook, to connect with Alex, gradually developing an emotional and cybersexual affair with him. When Alex grows insistent upon meeting in person, Claire, as Clara, says she's getting married and moving to Brazil, calling off the affair rather than risk a meeting. Alex deletes his profile, leading Claire to approach Ludovic to find out about him. He tells her that Alex, broken-hearted over a "psychopath" on Facebook, has killed himself.
These narrative details are revealed through a series of psychotherapy sessions between Claire and Dr Bormans. Bormans asks Claire to be honest about a detail in her story that does not add up, leading Claire to disclose that the photos and videos of "Clara" used during her communications with Alex actually belong to her estranged niece, Katia, whom she brought up.
From Wikipedia (CC BY-SA 4.0).