Lydia 's parents want to go on a vacation , so Beetlejuice , posing as Mr. Beetleman , offers his services as a tour guide in the Neitherworld .
Mr. and Lydia can spend the summer together .
Lydia 's parents want to go on a vacation , so Beetlejuice , posing as Mr. Beetleman , offers his services as a tour guide in the Neitherworld so that he and Lydia can spend the summer together .