Thriller (1973–1976)
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Anatomy of Terror 

An Echo of Theresa (original title)
An American visiting London becomes confused about the facts of his life particularly related to a mysterious Thersa.




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Episode credited cast:
Suzy Hunter
Brad Hunter
Matthew Earp
Basil Henson ...
Charles Merrow
Meriel Brook ...
William Job ...
Roger Hume ...
Dr. Korner
Larry Taylor ...
Betty Woolfe ...
Neville Phillips ...
Bar Waiter
Ted Richards ...
First Taxi Driver
Rest of cast listed alphabetically:
John Caesar ...
Second Taxi Driver


American businessman Brad Hunter and his wife Suzy are visiting England for the first time. Meeting a business contact, Brad introduces his wife as "Theresa." But it seems to be more than an innocent slip of the tongue. Brad begins behaving strangely and knows more about specific locations in London than he would as a first time visitor. Suzy hires private detective Matthew Earp to look into the reasons behind her husbands sudden change in personality. Written by L. Hamre

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Release Date:

5 May 1973 (UK)  »

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Did You Know?


There's a scene in this episode where the main character asks to be taken to Manchester Square. The building that he is taken to is EMI House and the stairwell above the door is where the famous picture of The Beatles on the front cover of Please Please Me was taken. The building has since been demolished. See more »

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User Reviews

an episode of mixed pleasures
22 May 2009 | by (United Kingdom) – See all my reviews

This episode of the Thriller series, although well-written and fairly well-cast, is a bit of a mish-mash really, not quite knowing what it is.

The story starts with Americans in London, Brad and Suzy Hunter (Paul Burke and Polly Bergen). He's rich and looking to close a deal with a fellow businessman, but keeps lapsing into strange outbursts about someone named Theresa - a name by which he first introduces his wife.

Clearly Hunter is losing his mind - or is he? This tale heads towards a tale of spies and brainwashing very quickly and although there are some nice touches (one character (Vernon Dobtcheff) is very Blofeld-like with his cat; London locations are used well), it takes a while to get going, only coming to life really with the introduction of the character of private detective Matthew Earp ('with more than a touch of Wyatt', played by Dinsdale Landen), who steals the show conclusively but unbalances the tone of the episode somewhat.

However Earp is such a fun character (and would return in another Thriller instalment two years later) I can't complain, and he does solves the mystery with some eccentricity and a touch of bravado. It's such a pity that the Hunters are played so flatly and suffer in comparison, and the 'An Echo of Theresa' doesn't really have a focus for where the story is going.

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