Dean and Cas are two world renowned serial killers, and begin a game of cat and mouse, leaving each other messages in their victims, winking/waving at each other on security cameras. Eventually, it's going to come to a head when they both pick the same victim; Sam Winchester. Inspired by a post from therangerofthenorth on tumblr.

My own little prompt 'Cas...even if you do this I'm never gonna love you.' So I didn't care for the whole Castiel dies after he gets the souls from Purgatory bit and I'm writing a new version of it. Castiel succeeded in getting the souls from Purgatory and declared himself God. Now he feels that he deserves some sort of compensation for all his hard work, mainly: Dean.