Meaning of the word "lose the plot" in English

What does "lose the plot" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

lose the plot

US /luːz ðə plɑt/
UK /luːz ðə plɑt/
"lose the plot" picture

Idiom

1.

to become unable to understand what is happening or to control your emotions

Example:
After working for 18 hours straight, I started to lose the plot.
The director seems to have lost the plot with this new movie.
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