A rumor is circulating around the Tipton Hotel that Suite 613 is haunted by a ghost named Irene, whose husband left her for an Italian woman during World War II. Meanwhile, Zack plays practical jokes on everyone, embarrassing them among other people. Later, when they hear that London has dropped her purse with a thousand dollars in Suite 613, Maddie, London, Zack, and Cody all run up to get it. On the way, Muriel tells them about Irene, then leaves. When Mr. Moseby finds them in the suite later on, he tells them of the experience he had with suite 613 when he was only a bellhop in the hotel. Then Zack dares Cody to spend a night at 613 and the person who runs out first owes the other five dollars.