over the top

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