Years after his wife Maria is gunned down by an unknown shooter, a crime that has never been solved, psychologist Alex Cross is called in by his former partner, John Sampson, who wants his help on a case that reveals a connection to Maria's death.

Believing he is investigating the work of a horrible new breed of killer when he encounters a murder scene of particular violence at the home of his oldest friend, detective Alex Cross finds himself entangled in the deadly Nigerian underworld of Washington, D.C.

"Alex Cross was a rising star in the Washington, D.C. police department when an unknown shooter gunned down his wife, Maria, in front of him. Alex's need for vengeance was placed on hold as he faced another huge challenge -- raising his children without their mother. Years later Alex is making a bold move in his life. He has left the FBI and set up practice as a psychologist once again. His life with Nana Mama, Damon, Jannie, and little Alex finally...