With the appearance of Vienna at the end of the latest episode I've come up with a thery about what might be going on. But which I'm sure will prove to be wrong making me look daft.
Vienna (who is an acctress) and several of her actor friends are acting out the kidnap/Satanist scenario in order to teach 'Uncle Joe' a lesson for all the years he snubbed her.
Or maybe not.
It was just an idea.