Yesterday Pill — Iain Benson

When Cassandra and Wade are abducted at gunpoint from a restaurant by Anya, Wade quickly realises their abduction was a rescue.
As their escape turns into a race around the Mediterranean, it dawns on Wade that Anya might hold the key to revealing Wade's past, to uncover the person he was before a seizure wiped his memory.
She has an uncanny ability to be one step ahead of those that want them dead: a shadowy organisation called Paladin.
Who is Paladin?
Why does Paladin want them dead?
How does Paladin find them so quickly?
What is Anya's secret?
Can Anya unlock Wade's past?
The answers may not be what Wade expected nor wanted.