When dedicated high school teacher Rachel (Virginie Efira) falls in love with Ali (Roschdy Zem), it's not long before she also falls for his daughter Leila. The lustful giddiness of Rachel and Ali's late-night rendezvous evolves into the familiar warmth of family picnics and after-school pickups. Although she feels like a mother, Rachel is not allowed to forget that Lelia is another woman's daughter. She begins to long for a child of her own, but as a forty-something woman, she is abundantly aware that she has limited time to begin a family. Rachel must decide whether to embrace the inherent entanglements of her current situation, including co-parenting with Ali's ex-wife Alice (Chiara Mastroianni), or strike out again on her own. Other People's Children becomes a soulful, sexy, and resolutely grown-up story of the elusive quest for agency and belonging.