The experiment began with the best of intentions: help a young child responsible for a traumatic death. If the child is too deeply traumatized and stigmatized to ever lead a normal life, wouldn't it be better if they just...forgot? Blythe and her friends Tucker, Tanya, and Gabrielle, are now teenagers, attending a local high school, falling in and out of love with each other. But then a shocking event happens at school: Gabrielle is found covered in blood in front of their deceased principal, with no memory of what happened. It's becoming apparent that their pasts weren't erased - they were just walled up, and now those walls are crumbling. How can Blythe and her friends trust each other when they can't even trust their own memories?