As it sounds, the leftover bits after a human soul and functioning organism have left the body. Not something you want to find in the bag on your fire escape when you first move in.

Therefore I offer the following story with the disclaimer that it is NOT an urban legend. I know the people involved but think it would be rude to name names.

This happy young couple moves into their new apartment to find that the previous tenants have left a garment bag filled with bones in the closet. Uncomfortable with this unsolicited gift, and the possibility that it might be evidence somewhere, they call the authorities. The authorities determine that