Before I Go to Sleep takes you on a rollercoaster ride through the mysterious and gripping life of Christine, a woman who wakes up every day with a blank slate, unable to remember anything about herself. The story unfolds as she pieces together her identity with the help of labeled pictures and her husband's guidance, only to discover a shocking truth about her past through a mysterious doctor.

Christine's character is brilliantly crafted, and I found myself completely immersed in the labyrinth of her mind. The narrative is so intense that it literally made my heart pound, creating a thrilling experience that kept me hooked from start to finish. The novel's creepiness adds an extra layer of intrigue, making it hard to put down. The author skillfully keeps you on the edge of your seat, making the anticipation for the revelations all the more satisfying when they finally unfold.