Another from the New Zealand piles.
From the Blurb:
How do you protect your family when you can't remember who's hunting them? A gripping international thriller, perfect for fans of Lee Child and Mason Cross
A family in England is massacred, the father left holding the shotgun.
PC Lucy Davies is convinced he's innocent
A sleeper agent in Moscow requests an urgent meeting with Dan Forrester, referencing their shared past.
His amnesia means he has no idea who he can trust.