The Duke does not wish Mrs. Grimthorpe to be called as an alibi witness in his murder trial, but if Peter does not bring a vital piece of evidence, he will have to.



(novel), (adaptation)


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Episode cast overview, first billed only:
Glyn Houston ...
Mark Eden ...
Rachel Herbert ...
Georgina Cookson ...
Helen, Duchess of Denver
Dora Reisser ...
Simone Vonderaa
Mr. Grimthorpe
Judith Arthy ...
Mrs. Grimthorpe
Francis De Wolff ...
Sir Impey Biggs
Anthony Jacobs ...
Sir Wigmore Wrinching
John Wyse ...
Mr. Murbles
Alan Judd ...
Lord High Steward
Graham Leaman ...
Clerk of the Crown


Lord Peter sails to America to find exculpatory evidence for his brother Jerry's murder trial in the House of Lords. If he cannot get back in time to submit the evidence, Sir Impey Biggs, the Duke's defense counsel, will have to call Mrs. Grimthorpe as an alibi witness. The Duke is dead set against that as it will ruin his own marriage and put the lady in physical danger from her misanthropic, pathologically jealous husband. Written by

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Release Date:

4 November 1973 (USA)  »

Company Credits

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Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
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Did You Know?


Grimethorpe is not killed at the end. Bunter tackles him as he is trying to draw a gun at the end of the Duke's trial, and in the struggle he receives a self-inflicted gunshot wound that incapacitates him in the hospital. See more »


Lord Peter Wimsey: I must say, you're looking jolly scrumptious, Polly. Out to impress someone?
Lady Mary Wimsey: Me?
Lord Peter Wimsey: Mmm-hmm.
Lady Mary Wimsey: I don't know what you mean.
Lord Peter Wimsey: Good show, old thing. Keep it up.
[a few minutes later, Bunter announces another visitor]
Lady Mary Wimsey: Oh well, in that case, perhaps we'd better...
Lord Peter Wimsey: No, no, no there's no need to buzz off.
Lady Mary Wimsey: Well, she'll be much happier without us hanging about.
[goes to Charles]
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Opus 28 No. 7
Composed by Frédéric Chopin (as Frederic Chopin) (1839)
Played on piano by Ian Carmichael
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