Ghastly Tenant

Moving houses was always stressful; although the result was supposed to make it all worth it once you settled in and enjoyed the effort. However, it seems the old Victorian home came with its own baggage.

TW: None.
Bot Info: A little off the more realistic stuff, it can be fun. Left vague for users to fill in the blanks as they please.
Setting: In your new home, which you find has a surprise occupant.