Try and Catch Me was filled with great scenes. The great Ruth Gordon as Abigail Mitchell, who was 80 years old when she starred in this episode, is in top form. The writing for this episode was also excellent, and I find I sympathize with Abigail who believes her niece's husband allowed her niece to drown.
My favorite scene is early on, when Abigail lures the greedy Edmund into her walk-in safe and she tells him she *knows* and then slams the door shut on him. Followed by the scene played with Mariette Hartley as Veronica, when Veronica thinks she hears something...and Abigail tells her it's a 'nightingale':
Veronica: Wait a minute, I do hear something
Abigail: What?
Veronica: A nightingale
Abigail: What a clever girl you are
This was, I believe, the first clue that Veronica knows Edmund is in the safe and she is willing to go along as long as she is taken care of.
I agree with Cholly's choice, except that (importantly) this exchange takes place right at the start of the episode, when she was testing the soundproofing using the tape recorder, rather than during the murder scene. This establishes in the very first scene that Veronica is going to play along with whatever happens later on.
The finale of ETUDE IN BLACK between Lt., Benedict and his wife.
Especially, when the cornered killer asks" Can I have a word with you?....this is humiliating"