A man suffers from a serious disease that causes acute narcolepsy whenever he is happy. The man develops a variety of techniques to deny himself pleasure and deal with the sleep issues, but they’re put to a big test when he falls in love.
Charlie has a neurological disorder in which strong emotions, especially joy, make him faint. He lives with his brother. Working as librarian gives him a quiet environment, but then Francesca enters the library and his life.