The Forever Man

An unknown client contracted him to assassinate a quirky, unassuming middle-aged man with no apparent enemies and no violent tendencies. After his first attempt fails, the distraught hitman determines to learn what went wrong. During his covert discussions with his target, he hears an unusual story of astounding survival and astonishing physical endurance. How can one man survive so many attempts on his life?

Is it a curse or a blessing? No matter how he tries, he cannot kill the Forever Man.