When a cognitive psychologist loses three patients to suicide, she finds herself confronting a dangerous conspiracy in this psychological thriller.

One of England's top specialists in post-traumatic stress, Dr Samantha Willerby has never seen anything like this before. After a fire on the London Underground, three survivors seek her help. All three are clearly traumatized--but their stories don't match the facts. Are they 'faking it'?

Sam's confusion turns to horror when, one by one, each of them is driven to suicide. Then the mystery strikes close to home when her partner, Conrad, begins to suffer the same terrifying flashbacks. As Sam works to uncover the cause, she finds herself unraveling a mysterious and chilling conspiracy . . .