A brutal murder at a remote psychiatric retreat unearths a maze of locked therapy rooms beneath Cross Creek Ranch — and a mastermind the media dubs 'The Therapist,' who has weaponized a network of sleeper patients across Texas. As Rangers Baker and Tate close in, the case explodes into a statewide manhunt where the threat doesn't hide in the shadows. It hides in the mind.

When Caleb Vance — a magnetic national figure credited with helping elect the President — is brutally murdered in front of his wife and children at a packed outdoor forum, his killer's manifesto spreads like wildfire online, inspiring a string of copycat attacks. Rangers Baker and Tate race to stop a cycle of bloodshed fueled by obsession, fear, and the deadly lure of internet fame.

A diplomat's daughter vanishes between two governments that both deny she ever existed. The closer the truth comes, the less anyone around her can be trusted.