The Simpsons (1989)

S15E14 The Ziff Who Came to Dinner

After being spooked by a horror film Homer allowed them to watch, Bart and Lisa embark on a late-night exploration of the attic, convinced they hear mysterious voices. To their shock, they discover Marge's former prom date, Artie Ziff, hiding out in their home. It turns out Artie is on the run after scamming the shareholders of his company.