This was a compelling story but perhaps told a little too simplistically. I kept wondering why Susannah Cahalan's (Chloë Grace Moretz) co-workers and family members weren't more questioning of her behavior whenever she zoned out, which was quite frequent. The seizures of course, couldn't go unnoticed, and by that time, the poor girl became hopelessly bedridden. The human brain is a fascinating subject, and this exploration of a rare medical condition brings to light one of the many things that can so easily go wrong with a person's body chemistry. Cinematically, this is not a great movie, but it tells a unique and engrossing story that fortunately has a happy ending for the principals involved.