Lara Jean keeps her love letters in a hatbox her mother gave her.They arent love letters that anyone else wrote for her; these are ones shes written. One for every boy shes ever lovedfive in all. When she writes, she can pour out her heart and soul and say all the things she would never say in real life, because her letters are for her eyes only. Until the day her secret letters are mailed, and suddenly Lara Jeans love life goes from imaginary to out of control.