Heartbreak Library (Korean: 그 남자의 책 198쪽; RR: Geu Namjaui Chaek 198-jjok; lit.

Page 198 of That Man's Book) is a 2008 South Korean romantic drama film starring Lee Dong-wook and Eugene.

At first, Eun-soo accuses him of book vandalism and reports him to the police, but she soon becomes curious regarding the complex story behind his actions.

So Joon-oh goes to the library everyday and tears out page 198 from every book, hoping that he will find a message that might lead to his beloved or at least the reason for her disappearance.

But since Joon-oh shows no sign of quitting, and she herself has just broken up with her boyfriend and is feeling her own loss in love, Eun-soo decides to help him decipher the messages on page 198 of all the books.