Horror late 80's / early 90's

[crackers]

Starts off with a doctor going into a empty house which I think he has just bought for an experiment with others (who arrive later) getting killed and his heart is put in a bowl.

Others arrive expecting to see him but all they find is the real estate agent ( who pops up every now and again) the bowl which they whip up a meal with.

There is a house fixing up montage.

They all get picked off one by one.

I do remember more but I don't want to ruin it unless I have to.

Any help?

[claws]

Sounds like Evil Laugh (1988) http://www.imdb.com/title/tt0095120/

[crackers]

Nice one, you got it.

Thank you.