I was going to post in here a couple nights ago with a movie plot I made up on the spot, but I got way too into all the little details and I couldn't make it sound as cool as it was in my head. So here's a brief synopsis:
A teenage boy named Max McManus (guess how I came up with that) has a near death experience when a train gets derailed in Chicago. He gets worked on by paramedics and miraculously survives. Years later, he becomes an EMT himself. He dedicates his life to saving other people's lives, until one day, people stop dying. Everyone in the world is immortal. And on top of that, Max becomes invisible to everyone around him and anyone he comes into contact with dies instantly. Max goes on to discover that his father, the Grim Reaper, had died and it was now his job to escort souls to the afterlife.
Like Ryan, I won't spoil the entire plot so that I can pitch the idea to Marvel as a comic-slash-movie series.