In Mexico City, an upper-class college student (Marimar Vega) and her younger brother (Dario Yazbek Bernal) are carjacked at gunpoint, ordered into the trunk of their vehicle, taken to a deserted house, and forced to copulate on camera for a sex video. Released to safety but unwilling to tell anyone what’s happened, they try without success to return to their normal lives. The premise for this drama sounds like something from a howling telenovela, but under writer-director Michel Franco it transpires in a near hush of fear and shame, broken on occasion by austere passages from Mendelssohn. Opening credits inform us that this is based on a true story and only the names have been changed, but the film’s dignity and restraint create such a powerful emotional reality that end credits reiterating the story’s origins come as something of a shock. In Spanish with subtitles. 89 min.