2x21 - Maniac Mansion

Idella goes to a psychiatrist because she's been having problems with Harry. She starts telling her story, but stops because she doesn't want to reveal that Harry is a fly. Fontanna recommends that she should spend time at the house to better understand Idella's situation. The family agrees, but are also worried about letting Harry's secret out. They eventually do, realizing that it's the only way for Idella to work everything out.