The mystery drama is set in the fictional coastal town of Neptune, California. It follows the life of a 17 year-old titular character Veronica, who once used to be a part of the in-crowd in her high-school until her best friend Lilly is murdered, and her father Keith Mars who is a Sheriff accuses Lilly’s wealthy father of the murder. However, Lilly’s father is exonerated and Keith is fired from his job, and he and Veronica are ostracized in the town. Veronica, in a bid to help her father with his new private investigation business and carving her way back into the in-crowd, becomes an apprentice investigator, sneaking into shady areas of the town to find secrets. Although, what she actually finds may forever change the lives of people in Neptune.