What a terrible thought - that a person could wake up every morning not having any idea who they are, able to keep memories for that day and then having them disappear that night. Although I found parts of it unbelievable, and thought partway I figured that she was purposely being kept in this personal hell. I never in a million years would have seen the end coming.
It is split into three parts, and though it's advertised as a thriller, I didn't feel that until the third part when it all came together. The first two parts were just ongoing about her trying to regain memories and writing her journal.
But all in all it was a good book, something different than the usual fare.