I saw a game with a very similar story in a previous game jam, so that's a funny coincidence! In that one, you had to haunt items to scare potential buyers for your home and you lost if they saw you.
I like the concept, although it would be cool if there was some other objective for the player to work on while scaring off the visitors, since right now, there isn't a whole lot to do (which makes sense in a 48 hour game, but in case you want to keep developing this, maybe you could add some other goals/mechanics to spice things up).