From the wikipedia article:
In the open world video game Free City, Guy (Reynolds) is a non-player character (NPC) working as a bank teller. Thanks to a program developed by programmers Milly (Comer) and Keys (Keery) inserted into Free City by the publisher Antoine (Waititi), Guy becomes aware of his world being a video game, and takes steps to make himself the hero, creating a race against time to save the game before the developers can shut it down.
