Marple - A murder is announced - 2004

I didn't like this episode very much, I'm afraid. I liked the actors, I liked some things so similar to the original story, so I can't exactly put my finger on the problem. I simply didn't "feel" it.
The story: A strange advert on the local newspaper reads: "A murder is announced, and will take place on Friday, September 25th, at Little Paddocks, at 7.30pm. Friends please accept this the only intimation". Quite bizarre indeed, so much so that even the owner of Little Paddocks Miss Letitia Blacklock (Zoe Wanamaker) knows nothing of it. Of course at 7.30 a group of people comes knocking at her door to see what it is all about, dying with curiosity. In the house live Letitia with old friend Dora "Bunny" Bunner (Elaine Page, so nice), plus two young women and a young man, but this part is a bit confusing to me I'm not sure I remember it correctly. Half the time I kept confusing the two women, never knowing who was who, and even at the end I'm not sure I got it right. Let's try : a woman pretended to be a cousin of Letitia, but she was in fact the only living relative (she and her brother, if he's alive, which I think he is if he is the husband of the other woman) of a man who's left Letitia all his money. So, she's Emma, and the other woman is the wife of Pip, a deserter she wants out of her life, and away from her son. I think. Not sure about the man, maybe he really was her cousin??  The only 'help' seems to be a maid, escaped from Poland or something: Mitzi(Catherine Tate!! I thought all time long that I knew her, I knew this actress, but had not recognized her!! Amazing!)
The guests are Amy (Claire Skinner) and her friend Hinchcliffe (Frances Barber): I liked them so much in the book, their relationship was heartbreaking. Colonel Easterbrook (Robert Pugh), Sadie (Cherie Lunghi) with her son Edmund (Christian Coulson) - well, at least I think that Edmund was her son, or was Edmund the name of the 'cousin'? Fact is, I remember only one name, I have no idea what the other was. They are all gathered in the same room, and at 7.30pm the lights go out, a man barges in with a torch, shouting, then gunshots are heard and at the end we see a young man, dead. He was a Swiss clerk, Rudy something.
Miss Marple (Geraldine McEwan) gets herself invited to stay over at Amy's house, as she's the daughter of an old friend. This way, Marple can follow the investigation up close and help the police :-p
D.I. Craddock (Alexander Armstrong) is at first very annoyed by her interference, but then realizes she talks no nonsense, and starts listening to her :-) The first question, since Letitia has been slightly hurt, is : where they trying to kill her? She explains it makes no sense because she has no money now, but she will inherit a lot of money after the death of a woman in Scotland; still, if Letty dies first, then another family will inherit, with twins Pip and Emma.
Bunny is a dear old friend of the Blacklocks, she knew both the sisters. There's only Letty now because Lotty died in Switzerland. Having tea with Miss Marple, though, Bunny keeps referring to Letty as "Lotty".
One night, at Bunny's birthday party, Archie (the colonel) after a few too many drinks, insists on reenacting the night of the murder, saying that the murderer must be one of the people in the room that night, and he realizes that from where she was standing, Amy was the only one not blinded by the light, so she could see who of them was not present in the room in that moment. He presses her, they all look at her, and she can't remember and is really agitated.
Archie had a sort of relationship (in the making, maybe one might say) with Sadie, who that day went to Letty's house to steal a meat dish "to treat Archie" and she saw Letitia coming home early. Her son is jealous and possessive, and also doesn't like the colonel because he is a drinker, so he tries his best to break them up. The colonel drinks even more now because he saw the gun that killed the poor guy, and it was his gun, but he did not have a license for it so could not go to the police. Her son learns about this and tells the police. He admits everything, that he hasn't seen his daughter in ten years after her mother divorced him because of the drinking, and that "Sadie is the best thing that ever could have happened", poor colonel he didn't want her to know that he had been thrown out of the army (again because of the drinking).
The morning after the party Bunny is found dead. On a rainy day, Amy suddenly remembers something and goes out to tell Hinch. She shouts "she wasn't there" but Hinch has work to do and doesn't go to her immediately. Amy gets strangled while she was trying to get the laundry in. Marple sees her from a window, on the ground, and goes out to her, and cries in the rain. With her, Hinch too. I remember in the book that when she died her girlfriend was devastated. She didn't look as much here, actually: sad, yes, without any energy left, maybe, but in the movie it didn't have the same impact on me as in the book.
Miss Marple puts all the pieces together and explains to everybody how it went. First she lets out the secrets of those young women that had nothing to do with the murder. They had lied to get close to Letitia, yes, but only in hope that after getting to know them, maybe becoming friends, Letitia would have provided for them with a small allowance. Then Marple goes on to serious things.
Mitzi barges in with a knife shouting at Letty, shouting that she had killed Amy, that it's always the innocents who suffer. How true actually. And she was right on the spot.
Let's explain it all: Years ago, in Switzerland, it was Letty, Letitia, who died. Lotty, Charlotte, pretended to be Letty to inherit the money, because that man was not related to them in any way. He had worked with Letty and she had helped him when he was in need, so he thought of leaving everything to his wife first, because he loved her of course, then at his wife's death everything would go to Letty, so Lotty pretended to be Letty, and went where nobody knew them. Except for Dora.
Letty killed the Swiss guy because he had recognized her one day, and he knew them back in Switzerland, and he probably could tell which sister was she, and she killed Bunny because of all the careless mistakes she kept making that "could reveal too much". Letty loved her very much, such an old friend, so she gave her a wonderful party and then drugged her. Of course Letty also killed Amy, for the obvious reason that Amy had rememberer that Letty was non in the room where she should have been, that night.
At the end, I was glad to see that Sadie goes home with one hand on Archie's arm and the other on her son's.

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