When Liz and step-daddy Peter move to a new house, Liz seems to be on a cloud that just keeps getting higher and higher. Everything is perfect - the baby is safe and happy, and she and Peter have all the time in the world to unleash years of pent-up sexual tension and desire. But when she goes back to college, a new acquaintance makes her question the quirky family she and Peter have built. Will Liz fall back into her daddy's arms? Will she still, after all is said and done, be Daddy's Dirty Girl?