Clay Jensen comes home from school to find outside his front door a mysterious box with his name on it. Inside he discovers a series of cassette tapes recorded by Hannah Baker - his classmate and crush. Only, she committed suicide two weeks earlier. On the first tape, Hannah explains that there are 13 reasons why she did what she did - and Clay is one of them. If he listens, Clay will find out how he got onto the list - what he hears will change his life forever.