MovieChat Forums > Murder Ahoy (1964) Discussion > Is this the film where Miss M. shows how...

Is this the film where Miss M. shows how Prussian Blue shows cyanide?

posted 12 years ago by SceneByScene
2 replies | jump to latest

In one of the TV'ised/filmed stories of Miss Marple, Miss M. shows - by way of a short science experiment - how revealing the colour "Prussian Blue" can show the existence of cyanide.

Is this in this film "Murder Ahoy!"?!?!

Or perhaps it was in one of Margaret Rutherford's other 3 'Miss Marple' films?

Or perhaps even one of the other actresses who have played Miss Marple, on TV?

Any ideas?!

TV(UK): Terrestrial&Freeview (no cable/sat wanted here! )

[–] MovingPictures1 11 years ago

Yes, this is the one.

[–] whiskeyTango-06 9 years ago

well, she rules-out cyanide by odor, and finally tests positively for strychnine with a color-changing sulphuric acid test.