As the film's synopsis states, "'Kumiko the Treasure Hunter' is based in a real story, though not necessarily a true one." In 2001, a woman from Tokyo traveled to the midwest United States during a frigid winter. She spoke no English, and her intentions for travel were a complete mystery. When she was found frozen to death in North Dakota, the news of her journey and subsequent death became a topic on message boards in the early days of the internet. READ MORE: The Zellner Brothers Discover the Best Way to Relax During Sundance Here's where the story gets really weird: rumors circulated that the girl, Takako Konishi, played here by Rinko Kikuchi, had actually traveled to the U.S.