"With pace and fineness, I Know What I Saw brings together an impossible crime, a witness no one wants to believe and an unflinching study of life on the streets. Intelligent, imaginative and meticulously plotted, this is an author at the top of his game - simply sensational."
M. W. Craven

"It's a truly Hitchcockian thriller ride, a white-knuckle ride through the tortuous labyrinth of human memory."
Chris Brookmyre

"Imran Mahmood's new book opens with a bang. When homeless Xander Shute wanders into a seemingly empty house he unwittingly witnesses a murder. But the police claim that almost nothing of what he has seen exists. Is Xander losing his mind? Soon the net tightens as a murder is discovered and Xander becomes the prime suspect. Mahmood, following his innovative, breakout hit, You Don't Know Me, once again delivers a twisting narrative full of surprises and blind alleys. Psychological noir at its most gripping."
Vaseem Khan

"Mahmood has a rare gift for combining hypnotic prose with a page-turning pace. A gripping and beautiful read."
Ayisha Malik

"I stayed up way past lights out last night to finish what was in short a quite phenomenal novel. Having absolutely loved You Don't Know Me, I was fairly certain this one would be good too, but it was far better than I could have hoped. What an astonishing voice Imran has created for Xander, at once intelligent, resourceful and yet also deeply flawed. I thought the complex plot was handled masterfully, and that double punch at the end was superb. I thoroughly enjoyed it."
James Oswal