Taking inspiration from any number of works about beautiful European youths with good style and hearts full of longing—most explicitly Proust, as well as Maurice Pialat’s À nos amours — Guadagnino’s film drops us “somewhere in Northern Italy” in 1983, where 17-year-old Elio (Timothée Chalamet) is lounging at his parents’ villa just as a summer apprenticeship reels in the improbably handsome American grad student Oliver (Armie Hammer) to study with Elio’ss father (Michael Stuhlbarg).