The boys find a dusty, old game called "Satan's Path." As they play, the town of Springfield is transformed into a real-life game world where classic board games—like Mouse Trap and Battleship —come to life as deadly challenges.
Lisa falls in love with a mysterious new student named Edmund (voiced by Daniel Radcliffe ), who reveals he is a vampire.
Homer becomes convinced Roger is a murderer and throws overboard a pie Roger baked, believing it's poisoned. When they see a dead shark, they assume the pie killed it and preemptively "kill" Roger in self-defense.
While on a romantic second honeymoon at sea, Homer and Marge rescue a castaway named Roger (voiced by Hugh Laurie). Roger claims to be a chef who escaped a mass poisoning on his previous yacht.