A serial killer crashes Detective Michael Bennett's wedding.

Weeks before NYPD Detective Michael Bennett is to marry his longtime love, Mary Catherine, an assassin announces his presence in the city with a string of grisly murders. Each victim is a young woman. And each has been killed in a manner as precise as it was gruesome.

Tasked with working alongside the FBI, Bennett and his gung-ho new partner uncover multiple cold-case homicides across the country that fit the same distinctive pattern -- proving the perpetrator they seek is as experienced at ending lives as he is at evading detection.

Bennett promises Mary Catherine that the case won't affect their upcoming wedding. But as Bennett prepares to make a lifetime commitment, the killer has a lethal vow of his own to fulfill.

The mayor of New York has a daughter who's missing and in danger. Detective Michael Bennett has a son who's in prison. The two strike a deal.

Bennett and the mayor have always had a tense relationship, but now the mayor sees in Bennett a discreet investigator with family worries of his own.

Just one father helping another.

The detective leaps into the case and sources lead him to a homicide in the Bronx. The victim has ties to a sophisticated hacking operation—and also to the mayor's missing daughter, Natalie, a twenty-one-year-old computer prodigy. The murder is part of a serial killing spree, one with national security implications. And suddenly Bennett is at the center of a dangerous triangle anchored by NYPD, FBI, and a transnational criminal organization.

Michael Bennett has always been an honorable man, but sometimes—when the lives of innocents are at stake—honor has to take a back seat. Survival comes first.

Only Detective Michael Bennett stands in the way of two lethal cartels fighting for New York City's multi-million-dollar opioid trade. And they know where he and his family live.

An anonymous tip about a crime in Upper Manhattan proves to be a setup. An officer is taken down -- and, despite the attackers' efforts, it's not Michael Bennett.

New York's top cop is not the only one at risk. One of Bennett's children sustains a mysterious injury. And a series of murders follows, each with a distinct signature, alerting Bennett to the presence of a professional killer with a flair for disguise.

Bennett taps his best investigators and sources, and they fan out across the five boroughs. But the leads they're chasing turn out to be phantoms. The assassin takes advantage of the chaos, enticing an officer into compromising Bennett, then luring another member of Bennett's family into even graver danger.

Michael Bennett can't tell what's driving the assassin. But he can tell it's personal, and that it's part of something huge. Through twist after twist, he fights to understand exactly how he fits into the killer's plan, before he becomes the ultimate victim.

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Detective Michael Bennett and his family are ready to escape New York for a vacation in Maine-but a shocking scene deep in the woods reveals a dark world of drugs and murder.

Haunted by guilt and shame, Michael Bennett is living with a father's worst nightmare. Reeling from a crisis that would destroy lesser families, the Bennetts escape New York for a much-needed vacation. But it turns out the brochures don't tell the full story; the seemingly perfect community has a deadly vice.

When local cops uncover a grisly crime scene buried deep in the woods, they consult the vacationing Bennett, who jumps at the chance to atone for his own sins. But far from the city streets he knows so well, no one will talk to the big-city detective, and the bodies keep piling up.

A young and forgotten girl is the closest thing Bennett has to a partner in his frantic hunt for the ghostlike perpetrator behind the violence. Will Bennett and his unlikely ally unmask the culprit before anyone else winds up haunted?