Columbo (1971–2003)
20 user 5 critic

A Deadly State of Mind 

A psychiatrist, who specializes in hypnosis, murders the husband of his mistress and convinces her to lie to the police; it's up to Lt. Columbo to discover the truth.


Harvey Hart


Peter S. Fischer, Richard Levinson (created by) | 1 more credit »


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Episode cast overview, first billed only:
Peter Falk ... Columbo
George Hamilton ... Dr. Mark Collier
Lesley Ann Warren ... Nadia Donner (as Lesley Warren)
Stephen Elliott Stephen Elliott ... Carl Donner
Karen Machon ... Dr. Anita Borden
Bruce Kirby ... Sergeant George Kramer
William Wintersole ... Dr. Hunt
Ryan MacDonald Ryan MacDonald ... Charles Whelan
Jack Manning Jack Manning ... Daniel Morris
Fred Draper ... David Morris
Glorie Kaufman Glorie Kaufman ... Brenda
Redmond Gleeson Redmond Gleeson ... Arnold
Vance Davis ... Officer Hendryx
Danny Wells Danny Wells ... Gary Keppler
Morris Buchanan ... Lab Man


A clinical hypnotist kills the husband of one of his patients during a violent confrontation after the victim uncovers his wife's affair with the hypnotist. The patient, who witnessed the event, is convinced by the hypnotist to lie to the police but when she eventually becomes a liability, he kills her by encouraging her to take a 'swan dive' off her hotel balcony.

Plot Summary | Add Synopsis


TV-PG | See all certifications »






Release Date:

27 April 1975 (USA) See more »

Also Known As:

Der Schlaf, der nie endet See more »

Company Credits

Production Co:

Universal Television See more »
Show more on IMDbPro »

Technical Specs


| (DVD)

Sound Mix:



Color (Technicolor)

Aspect Ratio:

1.33 : 1
See full technical specs »

Did You Know?


Television debut of Priscilla Barnes. See more »


As Columbo questions Nadia one day after the murder, he lights his cigar with Dr. Collier's lighter. He then holds his cigar and his notebook in his right hand. As Dr. Collier crosses from the sofa to a chair, Columbo transfers his notebook to his left hand, at which point his cigar completely disappears. See more »


Columbo: I've seen a lot of pictures of people jumping off of buildings. I never saw one naked.
See more »


Mazurka No.6 in A Minor, Op.7 No.2
Composed by Frédéric Chopin
From the audio unit which Columbo switches on
See more »

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User Reviews

I'd consider using a different doctor!
13 September 2019 | by MartinHaferSee all my reviews

Dr. Mark Collier (George Hamilton) is a psychiatrist whose moral compass is a bit bent to say the least! For example, he's having a sexual relationship with a patient he's currently treating! Then, when they arrange to meet for another round of hide the sausage, the angry husband shows up and confronts them. A fight ensues and Collier bashes the man over the head to get him off his scared wife. Not surprisingly, the husband is dead. And, instead of telling the police what happened, the doc insists his lover create a story about two masked men entering the house and killing the husband. The problem is that the wife (Lesley Ann Warren) is rather unstable and eventually the psychiatrist comes up with a hard to believe way to silence her using hypnosis.

The story is enjoyable and interesting. Unfortunately, the writer assumed hypnosis is MUCH more powerful than it really is, as you couldn't use it to kill anyone. I have training in hypnotherapy....and if I COULD use it for evil, I might! But such stuff is more the creation of TV and movie screenwriters than fact. Still, it IS enjoyable and Hamilton is very good as a suave killer.

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