This is my AU, one that I am currently writing a fanfiction for. It won't be posted here, just AO3. I don't know how long it will be before it's done, but I'm feeling good about it. As soon as I get it up, I'll make an announcement regarding it.

Summary:

Phillip Carlyle is a failing author, broke and running out of ways to make money. One day, in the wrong place at the wrong time, he witnesses a mob-ordained hit. With the mafia who leaves no witnesses out to kill him, he stands no chance.

Until a stranger with secrets saves his life.

Enter P. T. Barnum; a hit man who finds himself growing increasingly protective of this young, handsome stranger.

(And here's another one)