Denmark is officially the happiest nation on Earth, so when journalist Helen Russell finds herself spending a year in rural Jutland, she decides she'll do all she can to uncover the secrets of the Danes' happiness. But will the long, dark winters and pickled herring take their toll?

Denmark is officially the happiest nation on Earth, so when journalist Helen Russell finds herself spending a year in rural Jutland, she decides she'll do all she can to uncover the secrets of the Danes' happiness. But will the long, dark winters and pickled herring take their toll?