The 13th series is due to the fact that it was made from a book written by Jay Ashhur. Kelly Jenson returns home from school and finds a mysterious box, written on it and hinged on the niche. The box is full of cassette tapes, all filled with the voice of Hannah Baker, her classmate and her crash at school. Unfortunately, two weeks ago, Hannah sued for some reason, and he greatly upseted Kelly. In these tapes, Hannah recounts her daily memoirs with complete details and 13 reasons for ending her life.