Feel Good Story 2004 on netflix

Ji-young, a new employee of a small company, is devoted to her work, but ironically enough, she is given the task of evading taxes, thanks to that loyalty. Working late with Hee-jin, a co-worker who has dealt with tax evasion for many years, she feels a discreet hostility between Hee-jin and herself. While she moves toward the injustice of her company and society, a fire breaks out in the company building.