The narrator is Marc Marronier, a shallow, superficial, rich Parisian who works as an advertising executive, but concentrates much of his energy on frequenting the demimonde of Parisian clubs and bars. It's a world Beigbeder is all too familiar with, and his caustic observations are all the more accurate for it. In 'Love Lasts Three Years', our hero Marc has just been divorced and - shallow opportunist that he is - has decided to write a book about it. He has a theory that love lasts no more than three years, and here - while recounting the highs and lows of his marriage and taking us through brash nightclubs, vainglorious offices and soulless designer apartments - he brings to bear the theoretical and the empirical to prove his point. Both frightening and funny, the book reads like a diary: sometimes tender and real, sometimes fantastical and cruel, peppered with Beigbeder's acerbic one-liners and trademark wit.