Two And A Half Men: Season 6, Episode 14

6 - 14: David Copperfield Slipped Me a Roofie

Convinced that Alan's family doesn't fully appreciate him after they throw him a pathetic 40th birthday party, Melissa invites Alan to live with her and her mom, whose disturbing hobbies quickly send Alan back whence he came. Title quotation from: Berta, about the magician at Alan's birthday party.