I loved the fact that the setting was Sewickly, an upscale suburb of Pittsburgh. The story features four friends who all have children around the same age. The plot examines secrets, friendship, and even more secrets!! I was between a 3 and a 4 on this thriller, but I would lean towards a 4/5. I enjoyed the narration being changed from character to character to see what was going on in each character’s mind regarding the deep secrets.