Lillian is a cynical 29-year-old marketing professional living in Boston. She views social interactions as performances and carefully curates a low-maintenance, sexually adventurous persona to keep the attention of her casual boyfriend, Henry. After an ugly breakup and a drunken night where she casts an online revenge hex on him, Lillian is shocked to learn Henry has been murdered. She attempts to play the role of the grieving girlfriend, only to uncover his secret double life.

Henry is an Ivy League-educated risk analyst who maintains a four-month casual relationship with Lillian. He is secretive, claims to avoid social media, and prefers late-night encounters over public dates. Shortly after abruptly breaking up with Lillian, he is found stabbed to death outside a bar in Somerville, setting off a police investigation that exposes his hidden romantic life.

Nora is Henry’s long-term girlfriend of ten years. Following his murder, she learns of his infidelity and successfully monetizes her grief by publishing a viral article in *Teen Vogue*. She uses her growing online platform to present herself as a supportive, righteous victim while framing the unknown "other woman" as an aggressive homewrecker.

Jamie is Lillian’s loyal and accommodating best friend. She provides constant emotional validation, acts as a sounding board for Lillian's complaints, and even allows Lillian to use her credit card to pay for legal fees. Despite her gentle concerns about Henry's behavior, she reluctantly helps Lillian perform an online hex against him.

Lillian’s mother is a dramatic woman who views her life like a television soap opera. She raised Lillian alone after her estranged husband left and has a habit of shutting down conversations that make her uncomfortable, preferring to maintain a peaceful fiction over facing difficult truths.

Hector is an affordable defense attorney who takes on Lillian's case after she is questioned by the police. A religious man, he is unsettled by Lillian's use of a revenge hex and repeatedly advises her to undergo a psychological evaluation. He has never represented a client in a murder trial before.

Candice is the quirky, performative boss at the marketing firm Fizzle. She uses trendy internet slang, wears colorful Crocs, and tries to maintain a superficially positive office environment through activities like puppy yoga.

Known online as the "Wellness Witch," Bekah is an influencer who sells potions, tinctures, and spells to a large digital following. She is a potential client for Fizzle and inadvertently inspires Lillian to perform a revenge hex on Henry by posting a YouTube tutorial.

Elise is Lillian's roommate. She sleeps with earplugs and a fan, making her largely unaware of Lillian's late-night movements. She grows increasingly uncomfortable living with Lillian as the murder investigation progresses.

Amelia is Henry's sister. Following his death, she manages his digital footprint and breaks up a public altercation between Lillian and Nora at Henry's wake.

Detective Jennings is an investigator with the Boston Police Department assigned to Henry's murder case. She confronts Lillian with text message evidence and warns her not to leave the state.