Freshly arrived in Nantes to assume her new role as Detective Investigator, Céleste finds herself ostracized for arresting a man caught in the act of marital violence, oblivious to his status as a colleague. Tasked with investigating the seemingly mundane suicide of Anne Arnotte, a wealthy industrialist from Nantes’s elite circle, Céleste uncovers a case far more unsettling than initially perceived.

The investigation unveils a trail of missing items, cryptic markings on the victim’s body hinting at signs of violence, and a peculiar will bequeathing her fortune to a stranger. As Céleste delves deeper, she must assert her distinct personality and keen intellect, veiled beneath a profound empathy, to unravel the deeply buried secrets that continue to haunt the living.

Her relentless pursuit of justice leads her to uncover the dark underbelly of a world where appearances reign supreme, where facades conceal sinister truths. Céleste’s unwavering determination to unearth the truth forces her to confront the darkest recesses of human nature.