At some Parisian lost-and-found, a mysterious manuscript scribbled onto stray bits of hotel stationary and postcards and stuffed into an abandoned briefcase comes into the hands of an "editor," who claims to faithfully transcribe and assemble the random texts. On the face of it, these consist of fastidious descriptions of a series of hotel rooms in cities around the globe, but their world-weary writer, a certain "Olivier Rolin," is also involved in...