Kellen Monello, a mentally troubled and overworked FBI Agent will do anything to catch the serial killers of America. But, when the state of Texas is ravaged by a traveling kidnapper and murderer, Kellen doesn't have a single lead to go on as bodies continue to pile up. That is, until an imprisoned killer, Ezra Grazer, sends her a mysterious tip and breaks the case open. After another victim disappears and the death clock begins to tick, Kellen has no choice but to work with this oddly helpful murderer in hopes of finding the next victim before it's too late. But, is Ezra Grazer truly there...

Jimmy Brigio's life has turned upside down. His strategies are shattered in mere moments, as is his life. With no one left in the world to help him and his unlikely partner Sam Ashton finish the crime war they started, they can't help but feel hopeless against their powerful enemy, mafia lord Rico Terez and his extensive underworld empire. Jimmy knows he and Sam must fight this battle until the bitter conclusion. But as time passes on, he can't help but wonder if there's another adversary, waiting for him in the shadows of Chicago. Parabellum: Part II is the second installment of The Brigio...

Nine months after the airport incident, Kellen Monello still struggles to readjust to life at the FBI, and life after Ezra. She remains a successful agent without his help, but when a perplexing case lands on her desk Kellen knows she needs Ezra's help. A killer with a deadly game as their weapon has already left six people dead and shows no signs of stopping. With her mind still clouded by the past and the new killer leaving little evidence behind, Kellen can only hope Ezra will intervene, and that his intervention will be enough to capture the killer before more people die.