I really like the idea. The back cover could (emphasis on could, you do not have to do this if you don't want to) be simplified to this:
Me: "Get out of me!"
Him: "What for? You're almost dead anyway. What have you got to lose?"
Me: "I want you away from me, let alone in me!"
Him: Come on. It'll be fun. Who knows? Maybe you'll have the time of your life." Thinks for a moment. "And...I can save you from death itself."
Me: I hesitated. To reject it would get this person out of my body. But yet again, I could be letting go of the finest opportunity. To be spared from death itself...
I finally managed to choke out a hesitant word. "Fine!"
Then I let go.