Meaning:
A situation that has gotten way more serious or interesting due to recent complexities or developments.
Examples:
- This is where the plot thickens.
- This is where the plot thickens.
- I don't know what to think, but the plot thickens.
- Well, well, well— the plot thickens.
- Never been married, doesn't have a girlfriend, lives with his grandmother The plot thickens.
- Oh, the plot thickens.
- Well, well, well— the plot thickens.
- So the plot thickens.
- Castle: Never Judge a Book by Its Cover: The plot thickens!
- Okay, but... the plot thickens, okay?