Dawn Schiff is an incredibly punctual, quirky, and socially awkward accountant at a large nutritional supplement company who thrives on absolute routine, predictability, and her obsession with turtles. Her structured world clashes heavily with Natalie Farrell, the beautiful, effortlessly successful, and highly popular top sales representative of the firm. The corporate dynamic takes a terrifying turn when Dawn fails to show up for work one morning, triggering immediate red flags. Natalie receives a bizarre, anonymous phone call that implicates her directly in Dawn's sudden disappearance, launching a cat-and-mouse corporate investigation where office politics turn deadly.