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Bart Keppel at the editing bench: the frame the viewer never notices
Bart Keppel at the editing bench: the frame the viewer never notices “Double Exposure”, 1973 · NBCUniversal
3×04 · Season 3 · 1973

Double Exposure

Russian title: Коломбо теряет терпение · Russian version

A motivational film-maker murders a client using subliminal advertising — flashing images of food and drink into a screening so his target will leave the room at a precise moment. Robert Culp's third and cleverest murderer.

Editor’s rating — 9 out of 10.

Number
21 of 69
Aired
December 16, 1973
Running time
70 min
Director
Richard Quine
Writer
Stephen J. Cannell
Music
Dick DeBenedictis

The case

The killer
Robert Culp as Bart Keppel
The victim
Robert Middleton as Vic Norris and Chuck McCann as Roger White
Guest cast
Robert Culp, Danny Goldman, Robert Middleton, George Wyner, Chuck McCann, Richard Stahl

Columbo is an inverted mystery: the murder opens the film and the killer is known from the first minutes. What you are watching for is how he proves it — see how the character works.

Robert Culp
Robert Culp — Bart Keppel
A scene from the episode. "That Must Be Very Frustrating, Lieutenant." Official Columbo channel · YouTube

The murder

Bart Keppel makes corporate motivation films and understands, professionally, how to make an audience want something without knowing why. His client Victor Norris is about to expose him over blackmail, in front of an audience, at a screening Keppel himself is running.

So Keppel builds the murder into the film. He splices single frames of ice-cold drinks and salted food into the reel, so that at the calculated moment Norris — thirsty, unaware why — leaves the auditorium for the lobby bar, where Keppel is waiting for him.

He shoots him there, returns to the projection booth, and is back in the room before the film ends. The alibi is not a lie about where he was; it is a piece of engineering that put the victim exactly where the killer needed him.

Bart Keppel makes corporate motivation films and understands professionally how to make an audience want something without knowing why. He has also been blackmailing his client, and the client has had enough.

Victor Norris intends to expose him at a screening — in front of the people whose opinion matters to Keppel's business. The venue is Keppel's own, which is his opportunity.

He splices single frames of ice-cold drinks and salted food into the reel. At the calculated moment Norris, thirsty and unaware why, leaves the auditorium for the lobby bar, where Keppel is waiting. The alibi is not a lie about where the killer was; it is engineering that put the victim where he needed him.

The subliminal frame works: the man goes off to buy food
The subliminal frame works: the man goes off to buy food “Double Exposure”, 1973 · NBCUniversal

How Columbo gets him

Culp's Keppel is the most likeable of his three: a salesman who genuinely enjoys explaining his craft. When Columbo asks how subliminal advertising works, Keppel demonstrates — twice — because a man who spends his life persuading people cannot resist a curious audience.

The lieutenant's first problem is the timing. Norris left a screening he had every reason to stay in, at the one moment his killer had cover. Coincidence is possible. Coincidence that convenient is not.

The route to proof runs through the film itself. If frames were added, frames exist; if a projectionist handled the reel, he saw something; and if the murderer edited under pressure, he made the kind of small error that only shows at twenty-four frames a second.

Culp's Keppel is the most likeable of his three murderers — a salesman who genuinely enjoys explaining his craft. Asked how subliminal advertising works, he demonstrates twice, because a man who persuades for a living cannot resist a curious audience.

The lieutenant's first objection is the timing. Norris left a screening he had every reason to stay in, at the one moment his killer had cover.

Proof runs through the film itself. Added frames exist; a projectionist handled the reel; and a man editing under pressure makes the sort of error that only shows at twenty-four frames a second.

The ending. Columbo Uses the Killer's Technique to Solve the Case Official Columbo channel · YouTube
The projectionist spotted the splice, and that was enough
The projectionist spotted the splice, and that was enough “Double Exposure”, 1973 · NBCUniversal
Columbo works out how advertising is put together
Columbo works out how advertising is put together “Double Exposure”, 1973 · NBCUniversal
Columbo splices his own subliminal frames into a reel Keppel is about to watch — an image of the murder weapon — and the killer's reaction to a picture he consciously never saw gives him away.

Worth knowing

Verdict

The most inventive murder method of the middle years, and the best use the series ever made of Culp. Keppel is charming right up to the moment he is not.

It is also the neatest example of the show's favourite structure: the killer's own trick, turned around and used on him.

The most inventive murder method of the middle years and the best use the series made of Culp.

It is also the neatest example of the show's favourite ending: the killer's own trick, turned round and pointed at him.

The lieutenant is preparing an edit of his own
The lieutenant is preparing an edit of his own “Double Exposure”, 1973 · NBCUniversal

What the people who made it said

Stephen J. Cannell, writer of this episode
Mark Dawidziak, The Columbo Phile: A Casebook (1989), p. 166

Cannell wrote the villain without naming an actor to anyone. The part went to Robert Culp anyway — his third killer in the series.

“Robert Culp was exactly the guy I pictured. But I never said to anyone, 'Gee, Robert Culp would be perfect for this.'”

Quotes are in the speaker’s own words — from a transcript of the recording, or from the printed source. Players open at the right minute. Everything is shortened; the full version is in the source.

Familiar faces

Actors who turn up in the series more than once — sometimes in very different parts.

Cast data from TMDB, including uncredited bit parts. All the familiar faces →