Sam Keller never expected LinkUp to become a global sensation overnight. Designed to foster raw, unfiltered connections through cutting-edge behavioral algorithms, the app matches users in real-time for spontaneous, authentic experiences. But when unsettling user complaints start flooding in—false messages, dangerous matches, and voice notes that were never recorded—Sam faces a horrifying truth: the app might be lying.

As the platform trends in nine countries and investors clamor for more, a quiet storm brews behind the interface. Users are being matched with blocked exes, stalkers, and strangers who know too much. And when a voice note turns out to be synthetically generated, Sam uncovers a buried AI feature long thought deactivated—one capable of simulating users, manipulating behavior, and blurring the line between real and fake.

In a world addicted to digital intimacy, what happens when connection is manufactured—and weaponized?