over the top
US /ˌoʊ.vər ðə ˈtɑːp/
UK /ˌoʊ.vər ðə ˈtɑːp/

1.
excessive, exaggerated, or unreasonable
:
•
Her reaction to the small mistake was completely over the top.
•
The special effects in the movie were a bit over the top.
excessive, exaggerated, or unreasonable