Just watched the latest episode and I do think its getting worse. I was genuinely looking forward to this show due to the actors involved and the 'horror' aspect but have been disappointed most episodes.
The main problem is the horror part. There's no horror. There are some gory scenes but i've not found one of the MANY 'killer in the house, where are they?!' moments suspenseful simply because any suspense is immediately turned to frustration due to the situation requiring someone to do something stupid.
I know I will keep watching, mainly because its well made and i'm a big fan of James Purefoy but it is a very medicore show and does seem to be getting more generic as it goes along.