Conor O'Malley is visited by a mysterious monster who intends to teach him a few lessons about life.
Hannah Baker, a normal school girl suddenly kills herself, but no-one has any idea why. No-one, that is, apart from the people on the list. These individuals make up the thirteen different reasons why Hannah decided to commit suicide.
The truth is that the formula for happiness is a very difficult one to get right.
"Although there will be those friends who you are loyal to, you are guaranteed to find people that you get on better with."