I wonder if the word **"one"** in the following sentence refers to **"face"**?

> 
> “What did you just say?” Tony’s very angry **face** was **in** Peter’s very
>  embarrassed **one**.
> 
> 
> “I take it back.”
> 
> 
> 

And if I were right, what does this whole sentence mean? I am very very confused by the usage of **"in"** here. Is it even common to say **"somebody's face be in somebody's face"**? Could any one help please?