What about what happens in the new house? Who lives (or doesn't live) in the house? If the house is brand new and no one has moved in yet, maybe a taste would be a sandwich the builder brought or a piece of candy in the realtor's house (or gum from a cop, if it's a crime scene?). Or if the people have just moved in, is a family, new couple, or individual? I would think the people in the house would bring the "taste" in the form of what's being eaten in the house, if anything.

Just throwing this out there!