Rodger then pulls his trademark R.O.T matchbook from his pocket, knowing Eve will recognise it having discussed it together at the beginning of the second act. Credit to screenwriter, Ernest Lehman, for creating this clever plot device. Using a pen, Rodger writes a message to Eve on the inside of the matchbook, “They’re on to you – I’m in your room”. He then throws it down to her, hoping she’ll see it and pick it up. However, tension builds as Leonard, one of the two villains, played Martin Landau, comes over to talk with Eve. He looks down, sees the matchbook on the floor and even picks it up! Now at peak suspense, Leonard casually throws the matchbook onto the table and walks away. Eve finally spots it, reads it, and the rest is history.