Into the Labyrinth

Abducted at thirteen.
Returned at twenty-eight.
Is it time to go back into the labyrinth?
A young woman named Samantha Andretti wakes up in a hospital bed.
Samantha was abducted when she was thirteen.
She was kept prisoner for fifteen years.
The man by her side, Dr. Green, believes that Samantha's memories contain the clues that will lead to the capture of her abductor. But why does she keep referring to a labyrinth?
Outside the hospital, private investigator Bruno Genko does not have long to live. Bruno was assigned to Samantha's case many years ago, and now it is his chance to make amends.
Can Samantha be persuaded to go back into the labyrinth? And how did the man at its centre vanish so quickly?