Book Review; I Know Everything- Matthew Farrell

A psychologist grapples with his own sanity as murder evidence mounts against him.

Published by Thomas & Mercer 

Released 6th August 2019

Page count 320


i know everything


Police investigator Susan Adler is ready to close the book on a deadly car accident, but after the medical examiner discovers evidence of foul play, she knows she has a murder on her hands. The victim was the wealthy wife of Randall Brock, a renowned psychologist who treats patients with disturbing, brutal fantasies. And just like that, Susan’s got a suspect.

Randall has a violent past but knows he didn’t kill his wife. In the midst of his crushing grief, Randall receives a visit from a stranger with information to share about his wife’s death. But there’s a catch: in exchange for the stranger’s information, Randall must reveal dark secrets he’s kept hidden for years. As this shady figure applies more pressure and Susan closes in, Randall begins to doubt himself, clinging desperately to the pieces of his sanity.



Even though I Know Everything is a standard set up for a thriller, it kept me guessing hard enough to stay awake until 2am reading. It’s been a very long time since I managed this so you know I was super invested.

Farrell led me through a vast range of reactions to the main character Randall. My opinions of him constantly changed throughout the twists and turns of his arc. With so many questions surrounding him I was always on the backfoot, flipping pages as fast as I could.

Who is Sam? What happened to Randall’s brother? Who killed his wife? What are his truths?

As I’ve mentioned previously, I like trying to guess the end of thrillers such as these. It’s a fine line to tread, making sure the story ties together well with enough bread crumbs to lead the reader to a satisfying conclusion. But I also want to be shocked and surprised! The face palm ‘why didn’t I see that coming?’ moment is my favourite. I want to be outsmarted but I need to be able to follow the trail well enough to hypothesise along the way.
I Know Everything hit this mark perfectly.
I had to know who did it, how they did it and why they did it.


Farrell fed me just enough information to keep me hungry without temptation to seek sustenance elsewhere! Amidst the red herrings the revelations come to light slowly to piece this intriguing puzzle together.

While the concept has been done many times before it didnt detract from my reading experience. I was still chasing the killer right alongside Susan, mentally scouring the evidence in my need to beat her to the punch.

I think the ending could be a love or hate deal for some, for me it was love!

Roxanne’s Reactions:

I received an ARC of this title from Netgalley in exchange for an honest review.

Author: Roxanne Michelle

Dramatic, curly-haired wannabe writer from a nowhere town in Somerset. Stop-starter of all projects great and small. Here to talk books, film, mental health and lifestyle.

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