Inspector Wiggum (Chief Wiggum) believes a Hindu market owner (Apu) is behind the murders but detectives Eliza Simpson and Dr. Bartley (Lisa & Bart Simpson) take the case. They bring the recent victim's murder weapon to an antiques shop and the dealer (Comic Book Guy) tells them that the knife is part of a set of seven called the Seven Swords of Osiris. The dealer goes into the back room to see who acquired the swords and comes out with one of the swords in his back with the murderer already gone. They learn the swords were bought by Ebenezer Burns (Mr. Burns) and they find him in an opium den (Moe's Tavern). Burns explains that he bought the collection but sold them for opium to "a fat man with sideburns" and points to a man with that description. The man (Homer Simpson) shows his muttonc