A girl tethered to a serial killer by heart leads them to the undiscovered bodies of The Devil's breath victims.
Tethered follows two sisters, Willow and Raine Viviers along side two rogue FBI brothers on what seems like an impossible task to solving a dead end case. With no leads, and a corrupt government cover up, their time is running out to stop the spread of a Serial Killer Cult before another victim is claimed. 
But they have a secret weapon... 
Willow is a young adult who has just undergone a heart transplant who's trauma has changed her, she's gained a strange supernatural gift - she can see into the heart of the Devil's Breath Killer. She not only feels the serial killer's urges, knows his thoughts, but can somehow get's visions through the eyes of his victims too. 
These visions are chaotic, menacing and evil, and Willow can hardly make sense of her own reality without going insane. How will she decipher and hone in her special abilities in time to save a missing agent and stop another Devil's Breath Killing.