The Assistant is a slow-burn drama following Jane over a single workday. Jane arrives at the office before dawn and tackles the never-ending list of administrative tasks. As the day progresses, she witnesses subtle clues that hint at her boss’s inappropriate behavior with women. These range from suggestive phone calls to hurriedly cleaned-up office furniture. The long hours, demanding tasks, and constant fear of making mistakes create a stressful environment for Jane. The arrival of a young, inexperienced woman, Sienna, as a new hire is the turning point. Concerned for Sienna’s safety, Jane grapples with the decision to report her suspicions to Human Resources.