Kirsten King's debut novel, "A Good Person," delivers a gripping narrative that functions as both a murder mystery and a psychological thriller. The story is uniquely framed entirely through the perspective of its central character, Lillian, whom critic Carol Iaciofano Aucoin describes as a "memorable and memorably unreliable protagonist."

The Unreliable Protagonist and Her Desires

Set against the backdrop of Boston, the novel introduces Lillian, who is approaching 30 and works in marketing. She is involved in a tentative relationship with Henry, a risk analyst at State Street Bank. Their connection is limited, as Henry often uses work to restrict their meetings to weeknights only.

Lillian harbors deep fantasies of a conventional future, including marriage and owning property with Henry on Martha’s Vineyard. She yearns for a stable life, but this comfort always seems just beyond her grasp. Lillian’s internal world is a complex mix of egoism and self-pity.

Navigating Relationships and Exploitation

She frequently misinterprets casual interactions as deep romantic or platonic bonds. However, Lillian does possess a sharp social awareness when it comes to exploiting kindness. This is evident in her interactions with Jamie, a college friend who consistently offers financial aid and emotional support.

Lillian also manipulates her boss, Candace. She attributes Candace’s leniency regarding missed workdays and deadlines to "millennial guilt," allowing her own calendar to become steadily filled with excuses.

Pacing and Narrative Style

King employs a writing style described as both "lean and muscular," maintaining a brisk tempo that compels readers forward. This tight pacing is likely influenced by King's background in film and television writing.

King’s credits include the 2022 movie “Crush” and the animated series “The Second Best Hospital in the Galaxy.” This experience may explain the taut construction, similar to that found in the work of suspense authors like Lee Child and Tim Sullivan, who also transitioned from television.

The Shock of Betrayal and Death

Lillian’s imagined future with Henry shatters when he suddenly terminates their relationship. She is incensed, reflecting on the four months spent cultivating the persona of the "cool girl who was Down for Anything" and who enjoyed listening to Henry summarize the Dune books.

Her anger escalates to horror upon learning Henry has been discovered dead near his apartment. The rage flares anew when she discovers Henry's deception: he had been involved with Nora, his long-term girlfriend, all along.

Exploring Self-Molding in Romance

In a note to readers, King stated her fascination with how romantic relationships transform individuals, particularly how women adapt themselves to better suit a partner. King questions the consequences when the person one molds for is ultimately not a good person.

"A Good Person" examines these themes, featuring a deeply flawed woman as its vehicle, placing it alongside novels like Marisa Kashino’s “Best Offer Wins.” Nora, who is less flawed but also wronged by Henry, represents Lillian’s antithesis.

Boston Culture and Class Divisions

Nora embodies the Boston ideal: the right education, wardrobe, and career—the type of woman finance men typically settle down with, in Lillian’s bitter assessment. The novel effectively captures the physical environment of Greater Boston and its local culture.

It wryly touches upon Boston’s subtle, enduring class distinctions, referencing the centuries-old Brahmin influence that separates Nora and Lillian. Lillian humorously notes that their appearances rated an "eight" and a "soft Boston seven," respectively, suggesting they would not even register on scales in Los Angeles or New York.

As the murder investigation intensifies, Lillian and Nora’s paths intersect unexpectedly. They are linked by the revelation that Henry was far from the upright man he presented himself to be; in fact, he could be quite terrible.

King successfully crafts Lillian as a convincingly disturbing character, placing her in a world where the lines between good and bad, aggressor and victim, and reality and illusion are deliberately blurred. The central question remains: was Henry's fate sealed by his own terrible behavior, or was it the result of random violence?