Thriller. Sophie becomes convinced she is being stalked by her husband's co-worker.
An American master chemist plans to score big on a once-in-a-lifetime drug deal.
7/8 Hayden-Hoyle uncovers an international cover-up of the Stein wiretap.
High definition Audio described
6/8 Nessa discovers the full cost of her release from captivity eight years ago.
5/8 As Atika and Nessa remain in captivity, the secret that will bond them forever is revealed
4/8 Going back eight years, a younger Hayden-Hoyle climbs the ranks of MI6.
3/8 Nessa's security advisor follows a lead as he hunts down the missing boy.
2/8 Nessa's past, including her kidnap in Gaza, is dug up by MI6 boss Sir Hugh Hayden-Hoyle.
1/8 Powerful businesswoman Nessa Stein is thrown into a game of political cat-and-mouse.
8/10 With Andrei arrested, will anyone help pregnant Anna with her inquiries?
BBC Radio 4