Lydia is an irritable, but friendly, gothic teen mourning the loss of her mother. Lydia Deetz, her Father, assistant, and life coach Delia moved to Winter River, Connecticut. This was after just losing her mother Emily Deetz. A few years after meeting Beetlejuice, Lydia finds the Maitlands have vanished, leaving no indication of being ready to pass on. Lydia forges on into the Netheworld to save them from the demon Werthrent.  She begrudgingly teams up with Beetlejuice to save them.