When his wife is killed in a car crash in Hong Kong, Professor Jonah Murray must overcome his fear of flying to go to the Chinese territory. He then discovers that she had been leading a secret double life.
After Megan's final heartbreaking phone message, Jonah tries to convince David that she was killed. But his search for proof uncovers further secrets that force him to question whether he ever truly knew his wife at all.
David tells Jonah that Megan was shot and the police suppressed the evidence. On Megan's computer they find photos taken before her death, including that of the rubbish truck with which she supposedly collided - as well as two forged passports. They visit the refuse depot but are stone-walled. Sally is approached by a man who tells her that her boyfriend Ben was murdered whilst Jonah tells her he believes David was complicit in Megan's death.