Barcelona, Spain. Adrián Doria, a young and successful businessman accused of murder, meets one night with Virginia Goodman, an expert interrogation lawyer, in order to devise a defense strategy.
When Jesper distinguishes himself as the Postal Academy's worst student, he is sent to Smeerensburg, a small village located on an icy island above the Arctic Circle, where grumpy inhabitants barely exchange words, let alone letters. Jesper is about to give up and abandon his duty as a postman when he meets local teacher Alva and Klaus, a mysterious carpenter who lives alone in a cabin full of handmade toys.
During a mysterious thunderstorm, Vera, a young mother, manages to save a life in danger, but her good deed causes a disturbing chain of unexpected consequences.
