David Pelzer, victim of one of the worst child abuse cases in the history of California, tells the story of how he survived his mother's brutality and triumphed over his past.

Newcomer Katherine Langford plays the role of Hannah, a young woman who takes her own life. Two weeks after her tragic death, a classmate named Clay finds a mysterious box on his porch. Inside the box are recordings made by Hannah -- on whom Clay had a crush -- in which she explains the 13 reasons why she chose to commit suicide. If Clay decides to listen to the recordings, he will find out if and how he made the list. This intricate and heart-wrenching tale is told through Clay and Hannah's dual narratives.