Superwholock fanfiction where all of the characters end up on a cruise ship where something is definitely off.

College student, Autumn Michaels, loved her job. She got to work with brains all day, stay away from actual people, all while working on her dissertation on the criminally insane. One day she gets the opportunity of her life: a look into the mind of one of the most savage criminals ever caught. Will she be able to use her own secret to unlock the secrets of his mind?