In 1977, frustrated FBI hostage negotiator Holden Ford finds an unlikely ally in veteran agent Bill Tench and begins studying a new class of murderer.

Holden interviews the eerily articulate murderer Ed Kemper, but his research provokes negative feedback at the Bureau.

Holden's methods during a disturbing interview with mass murderer Richard Speck create dissension among the team and kick off an internal FBI probe.

The team cracks under pressure from an in-house review. Holden's bold style elicits a confession but puts his career, relationships and health at risk.

Amid sweeping changes at the BSU, Holden deals with severe repercussions from his close encounter with Ed Kemper.

To glean insight into the elusive BTK killer, Bill and Holden interview the Son of Sam, who makes a startling admission.

Bill gets drawn into a horrifying crime that hits close to home. Holden receives an intriguing offer while in Atlanta to interview a pair of killers.