House hunting for Cordelia lands her with a ghostly flatmate
Deciding her cockroach-infested apartment, Cordelia looks for a new place to rent. Unwisely, she takes Doyle's advice and winds up sharing with a demented ghost.
The scary old hag has been bumping off the previous female tenants, believing they would steal away her darling son. She'd already killed him in the fifties, anyway.
Trivia: Cordy's ghostly flatmate is nicknamed Phantom Dennis after the first Star Wars film. Writer Jane Espenson jokingly bemoans the fact that when a new character is created by a writer, they receive a small payment each time they are currently used. Sadly, as Dennis is never actually seen on screen after this episode, Jane doesn't get anything.