Sam is an Autistic ten year old girl with a very high IQ and a fixed mindset of a thirty year old. She hates her food touching and refuses to touch anyone but one person. Her 17 year old brother, who protects her against the worst of the world, well at least tries too, including abusive foster parents who use them for the benefits, and maybe to get their rage out every now and again. Charlie works two jobs to give Sam everything she needs to succeed in life, every text book and every museum trip he can fit in. When at the Museum one day, he recognises someone from his past, in which they don't know about Sam and he wants to keep it that way. He knows about their dark business and he has tried so hard to keep Sam innocent from the world. Will Charlie be able to keep Sam in the dark forever? Or will this someone show up, finding out they also have a little sister?