‘You do the same thing every day. You know exactly where you’re going. You’re not alone.’

When Zoe Walker sees a picture of herself in the classifieds section of a London newspaper, she’s determined to find out why it’s there. Each day, a picture of a different woman appears in the same place in the newspaper. Is it a mistake? A coincidence? Or is something much darker going on?

Mackintosh’s debut novel, I Let You Go, was released last year and was the fastest-selling title by a new crime writer in 2015. A Sunday Times bestseller, it’s fair to say the pressure was on for her second novel. I haven’t read I Let You Go, but after reading I See You I definitely want to check out more from this author.

Mackintosh has created an original thriller in the spirit of The Girl on the Train. I was drawn in by the clever concept hinted at in the blurb and hooked by Mackintosh’s gripping writing. The horrifying concept at the book’s heart will ensure that you will never be able to take the Tube again without glancing over your shoulder every couple of steps. This is not a book for those who suffer with paranoia.

All too often characters in thrillers such as this one lapse into cliché, particularly characters who are police officers. Thankfully Mackintosh manages to steer clear of the typical two-dimensional people populating such books. Her characters are realistically sketched but she keeps back just enough to ensure that everyone has reason to be considered a suspect.

This keeps up the tension throughout the entire story. Almost no one believes Zoe when she insists that something strange is going on, and the book becomes a race as you wonder whether the other characters will realise the truth in time to save her.

There were a few flaws, unfortunately. Chief amongst them was the fact that it descended into over-the-top melodrama towards the end. I also found the ending predictable (my mum read the book after me and also said that she saw it coming).

I would highly recommend this book to anyone looking for a clever, gripping psychological thriller. I raced through the book, unable to put it down for more than a couple of hours without giving in to the temptation to read just a few more pages. Even reading on the warmest summer day, I defy you not to have chills.

Many thanks to Little Brown for my review copy.

I See You is published by Sphere on 28th July.