Joe goes to the hotel to find Trevor, but discovers that he never checked in; he got into a taxi and fled. He learns that someone with his description was dropped off at the airport, but he didn't get on a plane. All indicators point to Trevor still being in the city.
Eve's speculation about the crime report proves true as Joe investigates Trevor. He discovers that while there is a Mark Trevor at Scotland Yard, he's not an inspector, but a man who works in the evidence lab. They also discover that Scotland Yard did not send the email about the killer, let alone that the killer may have moved on the US. Joe asks why Eve thought Trevor might be a fraud and she admits that it was a hunch, but one.....
