Wounded by the breakdown of her first marriage, a young mother of two meets a kind, handsome, charismatic new man and — after a protracted but ultimately successful romantic pursuit — learns to believe in love once more. This would be the complete arc of many a crowd-pleasing romcom or relationship drama. In “Loveable,” however, it merely fills the opening minutes, taking us to the title card on a wave of upbeat pop and sun-washed lensing. And then the story really begins, as Norwegian writer-director Lilja Ingolfsdottir’s unusual, intelligent marriage story wonders what happens when a second chance goes the way of the first, and who, if anyone, is to blame. Even after that buoyant, wrongfooting intro, however, the film has several further tonal shifts and narrative redirections up its sleeve.

What initially appears to be a fraught domestic two-hander becomes a more intensive solo character study, as Maria (Helga Guren...