This is the 12437th most frequent Turkish word.
hikayesine
"To/for his/her/its story" or "to/for the story."
Here, 'hikayesine' signifies possession, meaning 'its story', referring to the story owned or associated with the subject of the sentence, which is 'the book'.
Bu kitap, çok ilginç bir hikayesine sahip.
This book has a very interesting story.
In this sentence, 'hikayesine' points to the story of an individual ('him/her'), with 'e' indicating to listen or give attention to it.
Onun hikayesine kulak vermek iyi olur.
It would be good to listen to his/her story.
Here, 'hikayesine' is indicating 'to its story', suggesting that the music is adapted specifically to match the narrative of the film.