I did wonder if I was missing the point of it when I found it all so unrealistic. Who answers the door to a stranger and lets them in when they say they are a business partner, and who walks round with £1,000 in their handbag?
The appearance of Nigel Havers and Joanna Lumley, made it worse, both very poor actors, but maybe that does point to it being more of a black comedy than I had anticipated.
I will give it another go, but only because there isnt much else in the way of new drama.