Columbo: Season 7, Episode 5

The Conspirators (13 May 1978)

TV Episode  -   -  Crime | Drama | Mystery
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Ratings: 7.2/10 from 682 users  
Reviews: 17 user | 3 critic

An IRA terrorist executes an arms dealer he considers traitorous; Lt. Columbo is on the case.



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Title: The Conspirators (13 May 1978)

The Conspirators (13 May 1978) on IMDb 7.2/10

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Episode cast overview, first billed only:
Joe Devlin
Kate O'Connell
Bernard Behrens ...
George O'Connell
Michael Horton ...
Kerry Malone
Albert Paulsen ...
Vincent Pauley
Gun Dealer
Deborah White ...
Sean McClory ...
Michael Prince ...
Michael Moore
Donn Whyte ...
Tow Truck Driver
Carole Hemingway ...
Herself (as Carole Hemmingway)
Tony Giorgio ...


Devlin is an Irishman and in his youth he was a terrorist but now he is a famous writer and officially he is a supporter of an American society proposing to help the victims of terrorism. Actually he is buying from Pauley weapons for the terrorists. Devlin kills him because he think he has been betrayd. Lt. Columbo is responsible for the inquiry and becames friendly with Devlin. But it is very dangerous to be familiar with Lt. Columbo when you are a murderer. Written by Baldinotto da Pistoia

Plot Summary | Add Synopsis


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Release Date:

13 May 1978 (USA)  »

Company Credits

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Technical Specs



Sound Mix:



Aspect Ratio:

1.33 : 1
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Did You Know?


Final episode of the original "Columbo" series. Peter Falk would return to his most famous role in 1989. See more »


Joe Devlin originally agrees to purchase 500 M-11's for $300.00 per unit. However, when the deal is delivered in the Hotel Room, Mr. Pauley agrees to deliver 300 M-11's See more »


Lt. Columbo: A grand noble bird is the pelican. His beak holds more than his belly can. He swoops through the sky with an abundant supply. I'll be darned if I know how the hell he can!
See more »


References San Francisco (1936) See more »


Courtin' in the Kitchen
Traditional Irish Renaissance song (1450-1599)
Instrumental version heard at pub
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Frequently Asked Questions

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User Reviews

Falk and Revill make this episode work
4 April 2012 | by (United Kingdom) – See all my reviews

What a great episode, and a more than worthy finish to the original Columbo series. It is slickly filmed, with beautiful locations, and the music is both lilting and atmospheric. The writing is clever and witty, the scenes between Columbo and Devlin are plentiful and are among my favourites of the entire series(which includes the likes of the scene in Identity Crisis with Columbo and Patrick McGoohan's Nelson Brenner in Brenner's house with Madama Butterfly playing in the background), and the story is tightly plotted and completely diverting. The support cast are good, if nothing extraordinary, but it is the performances and rapport of the leads that make it work. Peter Falk is brilliant as Columbo, and Clive Revill gives a jovial and charming performance as Devlin, while there are a few moments of aggression I actually did find Devlin somewhat likable. In conclusion, a great episode that is a must watch for Falk and Revill. 9/10 Bethany Cox

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