French Exit

A rich woman and her son have run through their fortunes and they head off to Paris to spend the last little bit of it. They become friends (if you can call it that) with a medium, a private investigator, a widow, and some vagrants, and they have to keep watch on their cat (the rich woman's dead husband) who is always trying to escape or kill himself.

It's a dark, dark comedy (think The Sisters Brothers) and it's probably just me, but it struck me as such a dark comedy that I couldn't accept the humor and I hated whatever sort of philosophical points (if any) that the author was making in the story (even if it was simply that there is none).