Perla is an apartment manager living in the affluent gated community of Brighton Estates. She projects an image of domestic stability, blending in seamlessly with the wealthy women in her neighborhood. Internally, she is calculating, manipulative, and deeply resentful of her husband and daughter. She harbors an intense obsession with an imprisoned murderer named Leewood Folcrum and believes he is innocent of his crimes.

Grant is a data scientist, a devoted father to Sophie, and Perla's husband. He is a man of precision and routine who deeply loves his family. At seventeen, he experienced severe trauma when his sister Lucy was murdered in the infamous Folcrum Party killings. His grief makes him protective and predisposes him to seek stability, often leaving him vulnerable to Perla's emotional control.

Sophie is Perla and Grant's eleven-year-old daughter. Precocious and observant, she dreams of becoming a famous actress and living a glamorous lifestyle. She regularly documents her thoughts in a journal, where she reveals her ability to spot dishonesty in adults. She quietly mimics her mother's manipulative behaviors, utilizing lies to get her way while managing the tension in her home.

Leewood is an inmate at Lancaster Prison, convicted of the notorious Folcrum Party murders in which his daughter and her two friends were allegedly stabbed during a sleepover. Once a construction worker with a history of alcohol and substance dependency, he now spends his time adhering to strict personal rules and answering letters from pen pals. Despite his conviction, he maintains his innocence in his private thoughts.

Paige is a young community college student studying criminology. Plain and somewhat meek at first, she takes a job caring for Sophie. She inadvertently complicates the household dynamic due to her academic interest in crime and her father's employment at Lancaster Prison.

Dr. Maddox is a therapist practicing in the Pasadena area. She takes Perla on as a client, listening to carefully constructed accounts of marriage and family life. As the sessions progress, she begins to ask probing questions about her client's past and relationship dynamics.

Lucy is Grant's deceased sister, whose murder at the age of twelve shattered her family. She was one of the victims of the infamous Folcrum Party killings. Her memory casts a long shadow over her brother's life and his marriage.

Jenny is Leewood's daughter, whose twelfth birthday sleepover ended in a notorious triple murder. Raised in poverty by neglectful parents, she developed an intense watchfulness and possessed a remarkably high tolerance for violence before the tragic events of December 6th.

Jessica is Leewood's late wife and the mother of Jenny. She struggled heavily with alcohol and substance dependency, neglecting her family before dying of a lethal dose of sleeping pills two years prior to the Folcrum Party murders.

Kitty is one of the three twelve-year-old girls murdered during the Folcrum Party sleepover. Like Lucy, she suffered brutal injuries during the attack and serves as a grim memory for those connected to the tragedy.

Morayi is a wealthy housewife and member of the Brighton Estates inner circle. She is married to a prominent plastic surgeon and maintains a polite but surface-level friendship with Perla, occasionally finding herself pressured into doing favors.

Dr. Keita is a well-known plastic surgeon in Pasadena and the husband of Morayi. In addition to his lucrative cosmetic practice, he performs philanthropic medical work, a detail that slightly annoys his more status-obsessed clients.

Wally is Leewood's former best friend from the time before the Folcrum Party murders. He and his wife stepped in to care for Leewood's daughter when she was neglected, giving him a front-row seat to the dysfunctional dynamics of the Folcrum household.

Mandolin is a wealthy and popular girl at Sophie's school. She represents the social status and glamour that Sophie aspires to achieve, prompting Sophie to consider elevating her within her friend group.

Bridget is Sophie's current best friend. She is easygoing and submissive, going along with whatever plans her friends make, which makes her a convenient but ultimately disposable asset in Sophie's eyes.

George is the wealthy adoptive father who took in a traumatized twelve-year-old girl. He provided the financial stability and inheritance that later funded the construction of the Wultz family's luxurious Pasadena estate.

Janice is Perla's wealthy adoptive mother. She focused heavily on appearances, taking her newly adopted daughter to salons for makeovers and teaching her how to blend seamlessly into elite social circles.

Piketo is a brown rabbit chosen by Sophie, named after a dark, cautionary fable passed down through her family. The original story of Piketo—a rabbit murdered by her peers for failing to keep a secret—serves as a grim lesson about the dangers of breaking familial confidentiality.

Tina is an administrator at the Tom Pullic Academy, an expensive soccer school where Sophie is enrolled. She operates in the same affluent circles as the Brighton Estates residents and is easily manipulated by feigned emotion.

Madeline is the housekeeper for the Wultz family in Brighton Estates. She manages the day-to-day upkeep of the massive home, occasionally bringing domestic matters to her employer's attention.

Marci is a local hairstylist who provides services to the affluent women of Pasadena. She operates on the periphery of the Brighton Estates social circle, occasionally crossing paths with the neighborhood husbands at parties.