In 2025 New York City, where every breath is monitored and every move is mapped by AI, billionaire tech mogul Mason Carter rules the city's lockdown with cold precision. Haunted by a past betrayal and the loss of control, Mason built CoreSyn to protect the world. But when Lena Moser, an Austrian linguist with a radiant smile and a hidden agenda, crashes through his steel fortress of secrets, his world begins to unravel.

Lena never planned to fall for the man responsible for locking down half the planet, or for covering up her brother's mysterious death. But the deeper she digs, the more tangled their fates become. Mason's algorithms can predict everything, except the way Lena makes him feel. As they're forced into close quarters, sparks fly, truths explode, and enemies circle.

But when the final key to Lena's brother's secret is revealed in snowy Salzburg, their fragile bond shatters. A flash drive changes hands. A heart breaks. And a choice must be made.

Can love survive when trust has been programmed to fail?

Or will the man who locked down the world lose the only woman who ever dared to open him up?