THIS IS NOT MY BOOK!!! I HAVE NOTHING TO DO WITH THIS BOOK!!!! The original book Twist and Shout by the author from achiveofourown (Gabriel (AO3)) ALL THE CREDITS GOES TO GABRIEL AND STANDBYME!!

Dean Winchester spends his hours as the local mechanic, but in his free time he slices and kills. His own brother is working the case to find this killer. Cain is what they call him and Dean relishes in it. His next victim is accountant Castiel Novak, or so he thinks. Dean may not be able to go through with this one. This man has caught Dean's eyes and maybe even his heart.

Another town, another case, another school. It was the usual cycle of the life of Dean Winchester. However this time around on an unplanned trip to the library Dean meets someone who changes everything... Dean meets Castiel