Columbo (1971–2003)
26 user 5 critic

The Conspirators 

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


Leo Penn


Howard Berk, Pat Robison (based on an idea by) | 2 more credits »

On Disc

at Amazon




Episode cast overview, first billed only:
Peter Falk ... Columbo
Clive Revill ... Joe Devlin
Jeanette Nolan ... Kate O'Connell
Bernard Behrens ... George O'Connell
Michael Horton ... Kerry Malone
Albert Paulsen ... Vincent Pauley
L.Q. Jones ... Gun Dealer
Deborah White Deborah White ... Angela
Sean McClory ... Captain (as Seán McClory)
Michael Prince Michael Prince ... Michael Moore
Donn Whyte Donn Whyte ... Leach
Johnny Silver ... Tow Truck Driver
Carole Hemingway Carole Hemingway ... Herself (as Carole Hemmingway)
Tony Giorgio ... Harry
John McCann ... Brandon


Devlin is an Irishman. In his youth he was a terrorist but now he is a famous writer and, officially, 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 thinks he has been betrayed. Lt. Columbo is responsible for the inquiry and becomes friendly with Devlin, but it is very dangerous to be familiar with Lt. Columbo when you are a murderer. Written by Baldinotto da Pistoia / corrected by statmanjeff

Plot Summary | Add Synopsis


TV-PG | See all certifications »





English | Irish

Release Date:

13 May 1978 (USA) See more »

Also Known As:

"Columbo - Des sourires et des armes" (1978) See more »

Company Credits

Production Co:

Universal Television See more »
Show more on IMDbPro »

Technical Specs



Sound Mix:



Color (Technicolor)

Aspect Ratio:

1.33 : 1
See full technical specs »

Did You Know?


As a possible nod to this being the last episode of the original series, Columbo's final words are "This far and no farther." See more »


Devlin touches both the whiskey bottle and the glass in Mr. Pauley's room, yet the police don't seem to check them for fingerprints. We know Devlin was in jail previously in England so his prints would be on record. Even if those records weren't available for some reason, Columbo is plenty wily enough to get Devlin's prints on some pretext or another. See more »


Joe Devlin: Justice for the many. Justice for the free. Let each man be paid in full. That's just enough for me.
See more »


References San Francisco (1936) See more »


Courtin' in the Kitchen
Traditional Irish Renaissance song (1450-1599)
Instrumental version heard at pub
See more »

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User Reviews

Falk and Revill make this episode work
4 April 2012 | by TheLittleSongbirdSee 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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