After looking it up on Google, I can attest that it is a moderately creepy looking house. More importantly, however, terrible things happened within that home. And thus, people will not be interested in buying it. There is a lingering sense of evil in a place, once terrible evil has happened. And that will, rightfully, put people off of it.
Yes, it is possible for a house to be too creepy to inhabit. For anyone who has seen "The Silence of the Lambs", the house could remind them of scary scenes. Many people connect to films very well, and the association between the house and the film may prove to cause too many scary memories for anyone to inhabit it.
People probably don't like what the house is associated with. Or it may be in a bad neighborhood. There could be all kinds of reasons for it not to sell. There is even the possibility that the house is just too creepy. Of course considering that it was used as a movie set at first there is a chance that the price of the property has gone up,.
Indeed, living in the house of a serial killer would likely be unsettling for many people. The site of such a horrific event should condemned and abolished so the stain might be removed from the community. Doing this would prevent people from profiting from the terrible occurrences that took place there.