Dean Koontz: Your heart belongs to me

I'm not going to say much about the story because I don't want to spoil the book.
Suffice it to say it was written by Dean Koontz so you already know it is suspenseful. You don't really know which direction he is going until close to the end, at least, that was my case. Let's see if you can guess the twist.
If you had a bum ticker and somebody offered you a special deal, what would you do if money was no object?