You Know What You Did by K.T. Nguyen is a debut mystery novel about Annie, a woman mired down by her identities as a mother, wife, and daughter. Annie has been managing her OCD until the book begins with her elderly mother's death. Her grief launches her into a quagmire of intrusive thoughts and self doubt. When an older patron who has hired her for many artistic projects disappears, Annie is at a loss and under suspicion. 

The synopsis of this book gave me high hopes, but what it delivered was uneven pacing and a first half that was very repetitive, slow, and hard to get through. However around the half way mark, the pacing picked up and I really enjoyed most of the back end of this story. Annie's OCD is based largely on the author's own experience and her character development was promising. I didn't feel the same about the development of her husband and daughter's characters. As for the ending, I thought it was really fun and unsettling until the final pages of the epilogue put on a too tidy bow. 

I will look forward to reading Nguyen's next novel and seeing how she improves and builds upon this start.