Investigating a trio of horrifying murders in three major U.S. cities against a backdrop of his impending nuptials, Detective Michael Bennett risks getting caught in a deadly trap set by a particularly elusive killer. A series of gruesome murders in New York City has Michael Bennett angry-- but when he identifies similar cases in Atlanta and San Francisco, his feelings escalate into all-out alarm. All of the victims are young women, and each one is killed in a manner as precise as it was gruesome. Working alongside the FBI, Bennett and his new parter toil to connect the cases. But as Bennett prepares to make a lifetime commitment to Mary Catherine, the killer has a lethal vow of his own to fulfill.