coup de main - noun
kü-də-ˈmaⁿ
Definition of coup de main : an attack that achieves complete surprise.

Watch: the trailer for Jesse Eisenberg's directorial debut 'When You Finish Saving The World' starring Finn Wolfhard and Julianne Moore.

The first trailer for Jesse Eisenberg's coming-of-age directorial debut 'When You Finish Saving The World' is here - starring Finn Wolfhard and Julianne Moore. 

"Evelyn and her oblivious son Ziggy seek out replacements for each other as Evelyn desperately tries to parent an unassuming teenager at her shelter, while Ziggy fumbles through his pursuit of a brilliant young woman at school."

Watch the trailer below...