A woman discovers the truth about her former lover from the diary that his first wife wrote to their son, Nicholas.

Alex Cross, a detective and forensic psychologist, along with his partner John Sampson, begins tracking a serial killer following the shocking murder of a Black Lives Matter activist.

Alex Cross, a genius homicide detective/psychologist is trying to clean up the mean streets of Detroit while keeping his family out of the line of fire. As he mulls over accepting a job with the FBI, he is told that a friend has been murdered and he vows to track down the killer. Soon, he and his team are forced to match wits with a psychotic contract killer, who displays a disturbing commitment towards seeing his job through.