In Tumbledown, a young widow (Rebecca Hall), falls for a brash New York writer (Jason Sudeikis) who barrels into her rural Maine town investigating the death of her husband, folk-music hero Hunter Miles. Hannah is scraping her life back together in a cabin at the foot of Tumbledown mountain, attempting to seal every shred of her husband’s life into a biography. When Andrew, an academic who has a different take on Hunter’s life and death, shows up looking for the truth of this mysterious musician, the pair clash. But gradually they find themselves collaborating to craft Hunter’s story, and beginning to write the next chapter of their lives together.