From the #1 New York Times bestselling master of suspense comesa riveting thriller that probes the deepest terrors of the humanpsyche—and the ineffable mystery of what truly makes us who we are.Here a brilliant young man finds himself fighting for his veryexistence in a battle that starts with the most frightening words ofall…
At thirty-four, Internet entrepreneur Ryan Perry seemed tohave the world in his pocket—until the first troubling symptomsappeared out of nowhere. Within days, he’s diagnosed with incurablecardiomyopathy and finds himself on the waiting list for a hearttransplant; it’s his only hope, and it’s dwindling fast. Ryan is aboutto lose it all…his health, his girlfriend Samantha, and his life.

One year later, Ryan has never felt better. Business is good and hehopes to renew his relationship with Samantha. Then the unmarked giftsbegin to appear—a box of Valentine candy hearts, a heart pendant. Mostdisturbing of all, a graphic heart surgery video and the chillingmessage: Your heart belongs to me.
In a heartbeat, themedical miracle that gave Ryan a second chance at life is about tobecome a curse worse than death. For Ryan is being stalked by amysterious woman who feels entitled to everything he has. She’s thespitting image of the twenty-six-year-old donor of the heart beatingsteadily in Ryan’s own chest