Your Heart Belongs to Me - Dean Koontz

For one man, they are the five most terrifying words of all . . .

One year after the heart transplant that saved his life, thirty-five-year-old Ryan Perry has never felt better. He's getting back everything he nearly lost forever-his business, his his life, and, with luck, his beloved girlfriend. Miracles do happen.

Then the unmarked gifts begin to arrive-a box of candy hearts, a heart pendant. Most disturbing of all is a graphic heart-surgery video and its chilling message: Your heart belongs to me. Ryan is being stalked by someone who feels entitled to everything he has. She's the spitting image of the twenty-six-year-old donor of the heart beating steadily in Ryan's own chest. And she's come to take it back.