Superb episode. Extremely difficult frame-up by brilliant defense lawyer picked apart step by step by Columbo, until he is stumped by a seemingly foolproof alibi. The way he cracks it, and the manner of proving it provides for one of the most shocking and fabulous Columbo finales of all. Dabney Coleman is really good as the murderer, who thinks he can arrogantly get away with anything because of his unbeaten record as a murder defense lawyer and his powerful connections in the system. It seems to give Columbo an extra desire to get him, and you can hear the joy in his voice when he finally gets the last laugh and nails him. However, I do wish Falk had not included his wife Shera Danese in six episodes. If ever there was a case of nepotism, this was it. As superb as he was as an actor, that is how bad she was as an actress. But if that was the price to pay for enjoying Falk's immense talents in 68 Columbo episodes, I'll gladly pay it. However, after reading the other reviews, I realize that many people missed the main clue (e.g., eralan_uk), which ruined the whole episode for them. Without including a spoiler here (as I have carefully avoided them in all my reviews, so viewers can have advance notice of the quality of the episode beforehand), allow me to add this critical info. If you miss one cryptic early allusion to it, you will not be able to figure out how a person can create a complex fake alibi for a murderer, yet not suspect him as the murderer until after the fact. The answer is that the person unwittingly created the alibi, thinking it was for some other purpose, and only put two and two together after the fact. So pay careful attention when that person first reveals their suspicions to the murderer, as she briefly explains what she had been asked to do earlier, and how that led to her current suspicions. The full meaning of her cryptic comments only become clear later on, when the fake alibi is revealed.