A montagish lie involves rearranging, reversing the order, altering the linguistic context, or re-expressing the true content in such a way that the final presentation differs drastically from the truth. Even though every single statement made by the other person is true when taken in isolation, when combined, they convey a completely false meaning.
To give two very simple examples:
First:
I saw the entire crime taking place, but I couldn't clearly see the criminal's face—well, of course not, since he was the criminal himself, he naturally couldn't see his own face.
Chapter 317