When George catches Joey still talking to Jennifer. He decides to help him by playing along and what he decides to do is hire an exorcist to get rid of Jennifer's ghost. She arrives and it's clear she's just putting on a show. She says she trapped the ghost in a jar and when she hands the jar to Joey, he sees Jennifer in it and the exorcist claims that the ghost is powerless and within a few hours will be gone. Joey is happy to be rid of her till he learns that a scathing letter he wrote to a teacher in a heated moment was mailed by his mother. So he lets Jennifer out of the jar to get the letter but Jennifer's ghostly abilities are not working. They deduce it was a result of what exorcist did so Joey calls her to undo what she did. But alas she doesn't know what she did or to undo it.