More of a 5 than a 6 really, except for the fact that Smith here introduces the concept of ghosts as characters in fiction. The premise of the book, however, lacks ... virtue. Basically, the point is that the drunker you are, the funnier you are and the more you grasp the purpose of life. Along the way, Cosmo and Marion carry on a flirtation but never, as far as I could tell anyway, have an affair.