Snow

Set in rural County Wexford, Ireland, in the winter of 1957, the novel opens with an unnamed priest attacked in the darkened corridor of a country house. Someone has removed a lightbulb from the passageway, and in the pitch dark, a blade is driven into the priest's neck. He staggers downstairs and collapses in the library, where his attacker follows and castrates him with a knife. He dies on the parquet floor.

Detective Inspector St. John Strafford, a 35-year-old Protestant from an old landed family, arrives at Ballyglass House to investigate. Colonel Geoffrey Osborne, the master of the house and a decorated Second World War veteran, leads him to the body of Father Tom Lawless, a local priest and frequent guest. The crime scene has been compromised: Osborne fastened the dead man's trousers to hide the castration, the housekeeper Mrs. Duffy joined his hands on his chest, and the blood has been mopped up. Osborne insists the killer was an intruder, but Strafford finds no sign of forced entry.

The forensics team confirms the priest was stabbed upstairs and castrated in the library. The severed genitals are missing. Detective Sergeant Ambrose Jenkins, Strafford's earnest colleague, arrives to assist. The household that night consisted of Colonel Osborne; his much younger second wife, Sylvia, who appears dazed and believes the death was accidental; the Colonel's children from his first marriage, Dominic, a medical student at Trinity College Dublin, and 17-year-old Lettie; and Mrs. Duffy.

Upstairs, Strafford discovers the lightbulb was deliberately removed, confirming premeditation. The priest's whiskey glass is also missing. In the drawing room, Lettie, a sharp-tongued observer, describes Father Lawless as "oogey," always watching people. Dominic returns from walking the dog and greets the detectives with cold sarcasm. Despite the violent death of a supposed family friend, nobody in the house is grieving.

Chief Superintendent Hackett, Strafford's superior in Dublin, telephones with orders: The Archbishop's residence has spoken to the Garda Commissioner, and the priest's death is to be treated officially as an accident. Strafford pushes back but is told to maintain the pretense. He reflects that Hackett assigned him this case precisely because of his Protestant background and familiarity with the landed gentry. He sends Jenkins to Dublin with the body and continues the investigation alone.

Dr. Hafner, the family doctor who treats Sylvia for her "nerves," reveals Father Lawless had been reprimanded by the Church multiple times and mentions that the first Mrs. Osborne, Millicent, died years earlier by falling down the same back staircase. He also mentions Freddie Harbison, Sylvia's brother, who is barred from the house for his reputation as a scrounger.

Exploring the grounds, Strafford follows drops of blood into Ballyglass Wood, where he discovers a derelict caravan. Inside lives Fonsey Welch, the stable boy of 18 or 19 who grew up in an orphanage before being sent to Carricklea, a notorious industrial school. A skinned rabbit explains the blood. Fonsey denies knowing much about the priest, but when Strafford mentions his friendliness, Fonsey gives a bitter laugh: "Ah, sure, they're all that. The priests are all friendly." Chapters from Lettie's perspective reveal she has a secret sexual relationship with Fonsey, visiting him at the caravan and maintaining strict control over their encounters.

Jeremiah Reck, the local butcher and innkeeper, fills in Fonsey's history: born to an unmarried woman, raised in institutions, then sent to Carricklea, where he endured abuse he refuses to discuss. Reck doubts Fonsey could kill anyone and notes that the first Mrs. Osborne died on the same staircase.

Strafford's attempts to interview Sylvia prove frustrating; she is erratic and unable to remember what she saw. Father Lawless's sister, Rosemary Lawless, at the presbytery in nearby Scallanstown, reveals their father was JJ Lawless, a notorious Civil War gunman turned barrister. She explains her brother entered the priesthood to escape their domineering father and was "in torment," hiding secrets she cannot articulate. She mentions he served as chaplain at Carricklea.

Hackett orders Strafford to visit Archbishop John Charles McQuaid, the most powerful churchman in Ireland, at his coastal retreat. The postmortem has found a semen stain on the priest's trousers. The Archbishop delivers a veiled threat, lecturing Strafford on Ireland's innocence and making clear that the Church expects the details to remain hidden.

Back at Ballyglass, Jenkins has gone missing after speaking with Mrs. Duffy. A search party finds nothing in the snow. During the search, Sergeant Radford, the local Guard whose 19-year-old son Laurence drowned himself months earlier, reveals that Father Lawless was "very popular" with Laurence: "That priest was a cancer. He deserved what he got."

Sylvia tells Strafford that Father Lawless once confessed his anguish about priesthood and his feelings for her. She kisses Strafford twice, muddling his judgment. At a tense Christmas Eve dinner, the household's dysfunction erupts. Afterward, Sylvia tells Strafford she saw a shadow leaving the library the night of the murder but cannot identify the figure.

That night at the Sheaf of Barley inn, Strafford finds a note in his coat pocket: "ASK DOMINIC ABOUT THE SHELBOURNE HOTEL." On Christmas morning, he confronts Dominic during a walk along the snowy meadow. Ashen-faced, Dominic confesses that when he was 10 or 11, Father Lawless befriended him in the lobby of Dublin's Shelbourne Hotel, lured him to a room, and began a pattern of sexual abuse that continued for years. Dominic admits the priest came to his room the night of the murder, bringing photographs of children, and stayed until Dominic fell asleep. He heard nothing of the attack.

An interlude set in 1947 provides Father Lawless's own first-person account. Sent to Carricklea as chaplain after a scandal in Rome, he describes singling out a nine-year-old boy he calls "Ginger," recognizable as the young Fonsey, and systematically abusing him. He reveals his own father sexually abused him as a child and rationalizes the cycle of violence as love. He mentions recognizing Fonsey in Ballyglass but pretending not to know him and alludes to a "new favorite" at the house, confirming his predation continued.

Jenkins's body is found in the back of Reck's van at the Raven Point, a desolate stretch of coast where Radford's son washed up months before. Strafford confirms Fonsey was driving the van. At the caravan, they find the hatchet used to kill Jenkins, the knife used on the priest, and the priest's severed genitals inside the missing whiskey glass. The next day, Fonsey's body washes up on the shore; he walked into the sea.

A coda set 10 years later finds Strafford encountering Lettie, now 28 and calling herself Laura, at the Shelbourne Hotel the night before her wedding. She reveals Dominic converted to Catholicism and became a priest at a school for delinquent boys, a grim echo of Carricklea. In a charged exchange in St. Stephen's Green, Lettie tells Strafford that Fonsey mutilated the priest and lit a candle by his head but did not kill him. She nearly says "I'm glad I—" before catching herself. Strafford asks whether someone let Fonsey into the house and crept upstairs with him. Lettie deflects, reminding him what a sound sleeper she always claimed to be, and walks away into the shadows, leaving the question of her complicity suspended between confession and silence.