Losing a partner in a tragedy is one of the most devastating experiences a person can endure. One day, they are dreaming of a future together; the next, they are left with only memories. Yet, Yasuo Takamatsu has never stopped searching for his wife, who disappeared 13 years ago during the 2011 tsunami. Since then, he has dived hundreds of times in a quest to find her, as documented in "The Diver."