Detective Mike Nash thought that moving back to Yorkshire from London would give him a quieter life. Little did he know . . .

A violent murderer has escaped from Felling Prison.

Craig French slit the throats of a husband and wife and stole the luxury watches from their safe. But not before slicing the letter F into their foreheads.

Now he's on the loose.

But French's mother says that he wasn't fit to stand trial - he had amnesia and couldn't even recognize his own mum.

Mike Nash is not convinced either. But he is certain of one thing: there's a dangerous killer out there somewhere. And whoever it is must be stopped.