I loved the episode but seems to me there should have been some quick reference to the secretary getting punished for effectively being an accomplice after the fact. While I like when a episode of Columbo has an unpredictable twist like this one, its resolution should be part of the conclusion of the episode, along with the uncovering of the murderer.The interplay between Peter Falk and Ruth Gordon is priceless. At one point, Gordon, playing a famous writer, makes some comment about being flattered by the famous Lt. Columbo, making a tongue-in-cheek allusion to the detective's real life fame as a crime-solver. This is one of the best of many great Columbo installments.