The movie centers on a young hipster girl who loves to party. One day, she has to deal with taking care of naughty niece that she has never met before and on top of it all, she is trying to sort out her past love that could somehow affect her future.

Jim falls in love with Ann who works at a library at first sight. The only obstacle for his love is the library's rule - "Keep Quiet." So he writes down his feeling for her in the books he borrows. Unfortunately, Ann never realizes what he does until one day she accidentally sees his messages but Jim doesn't show up at the library anymore with unknown reasons. How will this love end - in laughter or tears?