Joe Mannix is visited by Portia and Penelope Penhaven, two elderly, eccentric sisters who insist that Mannix investigate a hit-and-run earlier that day, which damaged one of the headlights ... See full summary »



(created by), (created by) | 2 more credits »


Add Image Add an image

Do you have any images for this title?



Episode cast overview:
Portia Penhaven
Penelope Penhaven
Skip Seldon
Anton Valine
Ward Wood ...
Elmo Bagley
Dorothy Neumann ...
Mr. Zeigler
Shirley O'Hara ...
Mrs. Zeigler
Gary Waynesmith ...




Release Date:

14 January 1973 (USA)  »

Company Credits

Production Co:

Show detailed on  »

Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
See  »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Ridiculous plot...neat characters.
1 January 2016 | by (Bradenton, Florida) – See all my reviews

When the show begins, a hit-man kills some bloke. As he's making his escape, he accidentally backs into the car of Penelope and Portia (Ruth McDevitt and Elsa Lanchester). Now these are NOT normal old ladies--they're rich, very old fashioned and just plain weird! Instead of going to the police, they enlist the help of Mannix...even though it's just a cheap hit and run case. But in investigating this minor crime, Mannix accidentally walks into a mob hit--and soon the big mob boss (Abe Vigoda) is worried that Mannix will expose the killing. As for the ladies, they are weird and when the mob boss sends a 'fixer' to them to make good for the accident, they refuse...and soon are next on the hit parade! Can Mannix manage to sort all this out or will these old ladies soon be assuming room temperature?

This is an utterly ridiculous episode. Imagine hiring a private investigator to investigate such a petty crime! But, the old ladies (especially Lanchester) are quite funny and charming...and make the show well worth seeing despite the silliness.

0 of 1 people found this review helpful.  Was this review helpful to you?

Message Boards

Recent Posts
A too often used, ridiculous ending that ruined too many episodes rbecker28
Season 5-No Smoking by Mannix mastbradped
Bare breast in Season 3's 'The Sound of Darkness'! gregorynicoll
Season 4 Episodes mastbradped
The Opening Credits skasporty60
interracial couple laszlozoltan
Discuss A Matter of Principle (1973) on the IMDb message boards »

Contribute to This Page

Create a character page for: