A Flemish bluegrass musician and a tattooed woman fall passionately in love, but their bond is tested to breaking point when their young daughter is diagnosed with cancer. Felix van Groeningen tells the story in a fractured chronology that braids the couple's ecstatic early years with their shattering present, while a driving soundtrack of American folk and bluegrass music deepens every emotional register — a film that is equal parts tender love story and devastating grief.