When Piper Halliwell hunts the family recipe for her Grams' special apple pie, she instead stumbles across a curse one of P. Russell's, Phoebe's past life and thinking it to be her Grams', she bakes the pies. The next day, strange things start to happen: everyone who ate the pies are fixated to what they did just after they had eaten the pie. Now will Piper alone be able to reverse the damage done?