What would you do if your son was taken by a cult?
America's East Coast has been set alight by three of the most bizarre murders in law enforcement history: in each instance, the victims have been forced to kill themselves.
For ex-con-artist turned FBI agent, Saul Marshall, it seems like just another day in the office.
But when Saul discovers that the victims all have something in common - a close relative who's been missing for many years - he immediately feels a personal connection: his own son is missing, presumed dead. And when out the blue he receives a note from his son, communicating he's been kidnapped, Saul realizes this couldn't be more personal.
As Saul learns more about his son's captors - a serial killing cult, run by the psychopathic Ivan Drexler - he is forced off grid to fight back. But not only is Drexler giving his son just a week to live, he's also got even more shocking attacks in the pipeline...