The Thin Pink Line is a comedy film that follows the story of a young woman named Ellie who pretends to be pregnant in order to keep her job at a fashion magazine. She creates a fake pregnancy belly and goes to great lengths to maintain the charade, even enlisting the help of her roommate and a coworker. As Ellie's fake pregnancy becomes more and more elaborate, she must navigate the challenges of keeping up the lie while also dealing with the consequences of her actions. The film explores themes of deception, friendship, and the pressures of society to conform to certain expectations.