According to the 2014 novel of the same name, it follows the love life of two adults.
Authors Roger Kumble:
Anna Todd Tessa has everything to lose. Hardin has nothing to lose. – Except him. After a collision, life will never be the same again. After the start of the turmoil in their relationship, Tessa and Hardin were on their way to making things work. Tessa knew Hardin could be cruel, but when the bomb reveals the nature of their relationship – and Hardin’s shocking history – Tessa gets angry. Hardin will always be – Hardin. But what? Is he really a deep, thoughtful person that Tessa loved so much despite his angry face – or was he a stranger all the time? He wishes he could leave. It’s not just easy. Hardin knows he made a mistake, perhaps the biggest one in his life. He does not go down without a fight. But can he change? Will he change – for love? Yes, yes he will.