Inspired by a true story, “Sabina K.” follows the title character, a divorced mother of two small children, as she reconnects with Saša, a man who served with her in the Bosnian army during the war. Saša and Sabina fall deeply in love and plan to marry, but there’s a seemingly intractable problem: Sabina is a Muslim and Saša a Catholic, and both families strongly disapprove of the marriage. Thankfully, the couple has an ally in Ankica, whose son — killed in the war — was a close friend. “Aunt” Ankica thinks of Sabina and Saša as her own children and invites them to her home on the island of Korčula to marry. When springtime comes, Sabina travels to Korčula, happily reuniting with Ankica and waiting for Saša to join them for the wedding. But the days pass, and Saša fails to arrive. With a troubled heart, Sabina returns to Sarajevo, where she discovers that Saša has taken all his things from her apartment and moved out. He leaves no note, provides no explanation. Sabina goes to Saša’s mother for answers, but the deeply embittered woman treats her harshly and calls the police. Inexplicably, the love of her life has disappeared, and Sabina knows neither where he’s gone nor why he’s left.