Your darkest moment is your most vulnerable... Stephen Berry is about to jump off a bridge until a suicide prevention counsellor stops him. A week later, Stephen is dead. Found at the bottom of a cliff, DI Luc Callanach and DCI Ava Turner are drafted in to investigate whether he jumped or whether he was pushed... As they dig deeper, more would-be suicides roll in: a woman found dead in a bath; a man violently electrocuted. But these are carefully curated deaths - nothing like the impulsive suicide attempts they've been made out to be.

Little do Callanach and Turner know how close their perpetrator is as, across Edinburgh, a violent and psychopathic killer gains more confidence with every life he takes... An unstoppable crime thriller from the #1 bestseller. The perfect read for fans of Karin Slaughter and M. J. Arlidge. What others are saying about Perfect Crime: `This is one of the best crime fiction series out there...

Helen Fields always delivers gripping, compelling, thrilling and tense stories full of intriguing characters.' Reader review `Addictive, absorbing and absolutely page turning, the fifth book in the DI Callanach crime thriller series lives up to its name... I haven't read any of the previous books in this series, but that didn't matter, it reads perfectly as a standalone.' Reader review `Perfect Crime is exciting and shocking in equal measures. Old foes return, new psychopaths are introduced, and there's a bit of personal stuff going on too.

This is easily one of the best police procedural/crime series around.' Reader review `This series of books are just fantastic. They are dark, creepy, addictive and I can't recommend them highly enough.' Reader review `Highly recommended' James Oswald, author of the Inspector McLean series `Deliciously dark and gritty' Caroline Mitchell, author of the DI Amy Winter Thriller series