A TEAM TORN APART
Nine months ago DCI Matilda Darke survived a bullet to the head.
The brutal attack claimed dozens of lives, including those she loved most, and the nightmares still plague her every waking thought.
A MEMORY SHE'D RATHER FORGET
Now, she's ready to get back on the job.
But a new terror awaits.
A woman is found murdered and her wounds look eerily similar to several cold cases.
Desperate to find a lead, DCI Darke and her team must face a terrifying truth - a serial killer is on the loose in Sheffield.
A THREAT CLOSE TO HOME
Matilda has led countless murder investigations before but the lingering emotional scars from her ordeal and the uneasiness within her once-tight team have left tensions high.
As the body count rises, Matilda realises that this might just be where it all ends.