Julie is a young and lively woman who is constantly unlucky in love. When she gets dumped via messenger at her work, it seems like the final straw. However, after a deep depression, she discovers "personal fulfilment." A book, Learn to Be Happy, becomes her bible and she follows its advice to the letter both at work and in terms of love. Julie's latest fad finds a cool reception with her two best friends, Louise and Rose, whose love lives are not in a much better shape than Julie's. One of them maintains a secret love affair with her boss, while the other is in a dreary relationship that is on the ropes. Julie is a regular client of her local bookstore, where she devours all the books in the Self-Help section. She plays a love-hate game with Marc, her gruff and uptight boss, and falls for the charm of Ange, a good-looking young guy who is also a fan of personal development.