The last scene is supposed to be outside at night but it shifts from darkness to twilight.
When Eddie is calling Susan from Mannix's office, a two-shot shows him holding the receiver just above the desk as he's dialing the phone, but in the close-up a split-second later he's holding the receiver to his ear.
Early on a woman makes a call from a coin telephone. There is no answer and she hangs up. There should have been a refund from the two nickels she put it but there is not.