Is There a Woogy in the House?

Phoebe's fear of the "woogyman" who lives in the basement of their manor is an ongoing source of amusement for her two sisters. That is, until a violent earthquake unleashes a long-dormant shadow demon that takes over Phoebe's body, turning her against her siblings. Penny "Grams" Halliwell appears for the first time in this episode portrayed by Jennifer Rhodes.