Charmed (1998): Season 8, Episode 11

8 - 11: Mr. & Mrs. Witch

When her parents come for a visit, Billie accidently transforms them into assassins and also manages to contact a demon who is posing as a human. Meanwhile, Piper attempts to continue her life without Leo; Paige tries to make a connection with Henry; Phoebe tries to find a way to have her own life.