This was OK, but it wasn't exactly Gosford Park.
The mystery was crap, for a start. And the characters were mostly ghastly.
I can see what the author was trying to achieve; I just wish it had been more focused. If she'd beefed up the mystery, or cranked up the comedy, or gone for more social commentary, I feel it could have been more effective. Instead, we get a pinch of each, and it never quite felt like it was hitting the brief.