I have mixed feelings about I See You. I started it immediately after finishing I Let You Go, the author's debut novel, which was a marvelous piece of writing. I think the level of enjoyment would've been higher if I'd read the second novel before the first one. In terms of narrative perspectives the two books show a similar pattern: there are chapters in which the events are told from the main character's point of view (a middle-aged woman named Zoe who sees a photo of her in an odd newspaper ad) and chapters that focus on Kelly, a very determined police officer. 
 In contrast with the previous book, I think that I See You doesn't make you feel emotional, but only curious to discover the truth behind the mystery. Furthermore, I don't think that the twists are as good as the ones in I Let You Go, although the Epilogue was rather unexpected. I love travelling by metro and I believe the whole London Tube idea is both brilliant and terrifying. 
 I was interested in seeing whether Clare Mackintosh would approach differently her second novel compared to the first one and I am glad she did it. I See You is a quality psychological thriller and I'm eager to read the next novel the author will publish.