Poirot (1989–2013)
16 user

Third Girl 

After a seemingly neurotic young heiress tells Ariadne Oliver and Poirot that she thinks she may have killed someone, her ex-nanny is found with her wrists slashed.


Dan Reed


Agatha Christie (based on the novel by), Peter Flannery (screenplay)

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Episode cast overview, first billed only:
David Suchet ... Hercule Poirot
David Yelland David Yelland ... George
Jemima Rooper ... Norma Restarick
Zoë Wanamaker ... Ariadne Oliver
Clemency Burton-Hill ... Claudia Reece-Holland
Matilda Sturridge Matilda Sturridge ... Frances Cary
Tom Mison ... David Baker
John Warnaby John Warnaby ... Inspector Nelson
Caroline O'Neill ... Nanny Lavinia Seagram (as Caroline O'Neil)
James Wilby ... Andrew Restarick
Peter Bowles ... Sir Roderick Horsfield
Lucy Liemann ... Sonia
Tim Stern Tim Stern ... Alf Renny
Simon Hill ... Bus Ticket Inspector
Tessa Bell-Briggs Tessa Bell-Briggs ... Daphne the Waitress


Poirot is visited by a distraught girl, Norma Restarick, who fears she may have killed someone but runs away, telling him that he's too old rather than explaining further. By coincidence, Poirot's friend Ariadne Oliver lives in the same apartment block as Norma and her two roommates and recently went to their party, where Norma was distressed when she was offered ice cream. Norma's ex-nanny, Miss Lavinia Seagram, an alcoholic, also lived in the block but was recently found dead, with the verdict being suicide. Ariadne is unconvinced and searches the nanny's apartment, finding a clue which she puts in her handbag. Soon afterward she is attacked and the bag and its contents are stolen. Poirot visits the Restarick family home in the country, owned by Norma's great-uncle, Sir Roderick, an elderly and half-blind man who is dependent upon Sonia, his young personal assistant (who may well be a gold-digger). Andrew Restarick, Norma's father, explains to Poirot that he spent much of Norma's ... Written by don @ minifie-1

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Release Date:

18 July 2010 (USA) See more »

Company Credits

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Technical Specs


| (11 episodes)


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Did You Know?


Look closely and you'll see a painting in the artist's studio that was used fifteen years earlier in the episode, "Dead Man's Mirror." See more »


Sir Roderick Horsfield: Oh, ah, why, We're having a... a little house party this weekend. Perhaps you'd like to come?
Hercule Poirot: I would be most honored.
Sir Roderick Horsfield: Um, d-do you have a woman in tow?
Hercule Poirot: No.
Sir Roderick Horsfield: Well, bring her along anyway.
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User Reviews

Intriguing murder mystery with good emotional, psychological and comedic aspects to it
12 June 2016 | by grantssSee all my reviews

Hercule Poirot is visited by Miss Norma Restarick who claims she thinks she murdered someone, and asks for Poirot to save her. Sensing that Poirot does not understand, Miss Restarick flees. Later that evening the body of a neighbour to Miss Restarick, Nanny Seagram, is found with her wrists slashed - an apparent suicide. Poirot assists the Police and suspects it is murder. He is assisted in his investigations by Ariandne Oliver, a crime writer and friend. The main suspect is Miss Restarick - when she was a child her mother died in similar circumstances and Nanny Seagram was her nanny. Miss Restarick has even confessed to Nanny Seagram's murder...

One of the better Poirot mysteries. Not just a plain murder mystery but, due to Norma Restarick's state of mind, has some interesting psychological aspects to it. There is also some good emotional content.

The murder mystery side is also good, of course: many twists and turns and delicious intrigue.

One of the highlights of the episode is Zoe Wanamaker as Ariadne Oliver. With Japp, Hastings and Miss Lemon out of the picture, Oliver is Poirot's new sidekick, and yin to his yang. Much of Poirot's thinking is beyond her and she makes this clear. This, and some other character traits of Ms Oliver, make for some great comedy, helped by a wonderful performance by Zoe Wanamaker.

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