Pip is an 18-year-old high school student preparing to attend college in New York. She is described in the first novel as having long brown hair and brown eyes. Her only other noticeable physical attribute is her athleticism, and she is frequently depicted jogging around her neighborhood. Pip's avid interest in true crime prompted her to begin a podcast series entitled A Good Girl’s Guide to Murder. Her first season of the podcast is meant to be a school project, but it soon turns into a real investigation in which she unearths inconvenient truths about the residents of Fairview, Connecticut.

Pip has a tenacious dedication to finding out the truth, and her biggest frustration is the lack of support she receives from local law enforcement. She never takes no for an answer and succeeds in solving multiple cases that the police failed to crack. Her anger at witnessing frequent miscarriages of justice finally leads her to kill Jason Bell and pin the blame on serial rapist Max Hastings. Because Pip is so well acquainted with police procedures, she gets away with her staged crime.