In a world where everything is connected...
your home can kill you. When tech billionaire Elliot Vance dies of a sudden cardiac arrest in his own penthouse, FBI Special Agent Marcus Cole is called to the scene. No signs of struggle. No toxins. No suspects.
Just a perfectly silent death.
But Marcus doesn't believe in perfect deaths.
Hidden inside the victim's smart home system, he uncovers a chilling pattern - a sequence of invisible commands, executed at frequencies the human ear can't hear... but the human heart cannot survive.
And Vance isn't the first.
Across the world, powerful figures are dying the same way. No trace. No weapon. No explanation.
Until Marcus finds it.
A zero-day exploit buried inside millions of smart home devices...
turned into a precision assassination tool.
As the investigation deepens, Marcus discovers something far worse than a hack.
A classified program.
A kill list.
And a system designed not just to watch people...
...but to decide who should die.
With time running out and targets already marked, Marcus must race to expose a conspiracy that reaches deep into government intelligence, defense contractors, and the very technology people trust with their lives.
Because the next name on the list...
might already be chosen.