Paige, new to witchcraft, decides that she will take The Book of Shadows to work and cast some spells to help people in need of a hand. This works out in a variety of ways and Paige may have bitten off more than she can chew.
Meanwhile, Piper, grieving terribly at the loss of her big sister, Prue, is internalising her grief and becomes a Furie, a nasty demon, hell-bent on revenge, and she doesn't really care who gets in the way.
Funnily enough, it is her new half-sister who is able to understand what she is feeling as she too felt lost and abandoned when both of her adoptive parents died and left her alone. Nice piece of acting from Rose McGowan in this one.