The First Deadly Sin

Outside Mount Pleasant Baptist Church on West 81st Street in Manhattan, a brutal attack with an ice axe shatters the morning calm, a moment cut with graphic close-ups of a woman in surgery. The NYPD arrives to process the scene, and the coroner, Dr. Sanford Ferguson [James Whitmore], reveals that the fatal wound on the skull came from a spherical impact, not a blade. This grisly opening knot begins to pull the city’s fabric of crime into focus.

Detective Edward X. Delaney [Frank Sinatra] is present at the scene, and the shock of the event drives him to ignore the department’s whistle-blowing about priorities. His wife Barbara Delaney [Faye Dunaway] is in a hospital bed fighting for her life after emergency kidney surgery complications, a medical crisis that slowly gnaws at Delaney’s faith in doctors and systems alike. The film quietly traces how his personal grief sharpens his resolve to chase a killer who seems to be moving through the city with the same cold precision as the surgeons who saved lives moments earlier.

To solve the crime, Delaney dives into the puzzle with a rare blend of stubborn grit and patient curiosity. His first major clue leads him to Christopher Langley, an elderly Arms and Armor curator at the Metropolitan Museum of Art. Langley [Martin Gabel] is thrilled by the chance to work on a murder mystery with a monolithic, almost ceremonial feel. His research focuses on how the weapon’s entry angle and the perfectly spherical wound point to something more than a conventional blade. Langley’s meticulous reasoning narrows the field to a tool—specifically an ice axe—that could produce such a wound. His fascination with the problem becomes a partner to Delaney’s stubborn drive, and together they chase a trail that broadens far beyond a single block.

A hardware store becomes a turning point. Langley questions the shop clerk for the best implement to kill someone, and the clerk, amused but helpful, confirms the likelihood of an ice axe as the killer’s instrument. This moment crystallizes Delaney’s hunch and sets in motion a citywide search that aligns with Langley’s historical insight. The two men discover that a recent attack on West 79th Street mirrors the patterns of the 81st Street case, and they realize these aren’t isolated incidents but a series of linked murders.

Dr. Ferguson’s office becomes a hub of cross-checking as Delaney’s investigation intersects with a broader spectrum of the city’s social strata. The coroner’s observations, combined with Langley’s expertise, lead Delaney to piece together a model of the precise ice axe used in each attack. A sporting goods store furnishes another critical lead when the owner shares addresses collected from customers who bought that same ice axe. This list directs Delaney to a high-rise that towers over the city: the home of Daniel Blank [David Dukes].

Daniel Blank is a figure of wealth and social position, someone who moves in circles that seem to shield him from consequences. He has been present in the background, cleaning up after the killings, a disturbing pattern that Delaney’s persistence finally puts into focus. As Delaney closes in on Blank’s luxury apartment, Blank becomes increasingly reckless, launching one last failed attempt. A victim fights back and survives only to be struck by a passing car, a cruel reminder of how fragile life can be even as justice seems within reach.

Delaney retrieves a World War II-era Luger pistol from a closet in his own home—a weapon that has become a kind of personal relic and a grim reminder of the violence he has seen. He confronts Blank in the opulent security of his apartment, where Blank, with the air of a respectable and influential citizen, concedes nothing. In a tense final exchange, Delaney shoots Blank in the head as the killer speaks on the telephone to an operator. The moment marks a hard-won victory, but the cost is steep.

Back at the precinct, Delaney retires from the force, a quiet end to a career spent chasing shadows. The final scene shifts to the hospital, where Delaney sits by Barbara’s side, reading to her as she grows weak. He holds her hand and, in a moment of quiet despair, allows himself to grieve as she dies, leaving him alone with the weight of his losses and the unanswered questions that linger long after the case is closed.

Across the city’s mosaic of characters, other figures touch the investigation in small but meaningful ways. A brief opening cameo features a diner sequence with a man entering the scene, Bruce Willis, hinting at a larger, almost incidental texture of New York life. The case also brushes against the lives of lawmen and witnesses, such as the persistent Young Policeman [James Hayden], who watches the streets and the pursuit of truth from the margins, and Corelli [Jeffrey DeMunn], whose quiet observations echo Delaney’s methodical approach. Dr. Bernardi [George Coe] and Monica Gilbert [Brenda Vaccaro] enter the story through personal and professional threads that intersect with Delaney’s world as he navigates both the hospital wards and the city’s social strata. Sunny Jordeen [Anna Navarro] and Sports Clerk Girl [Denise Lute] contribute small, human moments that remind the audience that crime is embedded in everyday life.

In the end, the city’s shadows yield a grim, personal closure for Delaney: a retirement from duty, a wife who dies, and a man who has to live with the cost of justice. The film’s quiet, unflinching tone asks viewers to hold onto what is seen and what is lost, to consider the price of a life spent hunting a single, chilling killer, and to reflect on the fragile line between order and chaos that runs through a city that never truly sleeps.

Last Updated: October 09, 2025 at 14:58