Alfred Hitchcock liked a touch of humor in his stories, and sometimes a lot more than that. This is one example, a mystery writer who thinks he should have no trouble figuring out who murdered him given his last day to live over again. In the end he still needs help figuring it out, but also by then no longer really cares. Indeed, he now wonders how he ended up in Heaven -- only to learn that mystery writers always go there. God apparently has interesting tastes.