- Back in Chicago, Thornhill's still unrelentingly after George Kaplan.
- In the hotel's lobby, he asks for Kaplan's room number only to be told that Kaplan has checked out of the hotel and left a forwarding address in Rapid City, South Dakota.
- Thornhill sees Eve getting on the hotel elevator and heading up to the fourth floor.
- He then asks the front desk attendant for her room number and goes up to her room.
- Those were the good old days of zero hotel security.
- In her hotel room, she's surprised to see him there, and alive to boot.
- She asks how his meeting with Kaplan went, and Thornhill says the guy didn't show.
- She tries not to reveal how shaken up she is, but Thornhill calls her out. He says he's not going to let her out of his sight anymore.
- Eve says that's not going to work, since she has plans and he has problems.
- Thornhill says he wishes her plans and his problems "were somehow connected," since then they could always travel together, not "in separate directions" anymore.
- Eve gets a call and writes down an address, saying she'll meet the caller shortly.
- She asks Thornhill to do her "a big, big favor" and disappear, but he says no can do.
- Thornhill insists they have dinner together, but she says he has to do something about his suit first.
- He calls the valet to have the suit pressed, then gets in the shower to cool off; things have gotten hot and heavy again with Eve.
- Thinking he's in the shower, she leaves him alone in the room.
- Thornhill hasn't been in the shower, though, but watching her through the bathroom door, left slightly ajar. He figures out the address she wrote down, using the hotel stationary pad as a clue. It's the old "rub a pencil over the indentations" technique. He follows her.