When high school student Clay Jenkins receives a box in the mail containing thirteen cassette tapes recorded by his classmate Hannah, who committed suicide, he spends a bewildering and heartbreaking night crisscrossing their town, listening to Hannah's voice recounting the events leading up to her death.

After her mother's suicide, grief-stricken Leigh Sanders travels to Taiwan to stay with grandparents she never met, determined to find her mother who she believes turned into a bird.

Evan is shy, lonely, and bullied for it. He has a chance encounter with Connor Murphy-- just before Connor commits suicide. Evan's life suddenly gets turned around, and suddenly he isn't invisible anymore to the girl of his dreams-- Connor's sister, Zoe, who believes Evan was Connor's only friend. As Evan goes from being a nobody to everyone's hero and a social media superstar, Evan is filled with confidence... until things start unraveling. -- adapted...