Impeccable

Impeccable by Georgia Cook (A story in the Master! universe, read by Eric Roberts with Alistair Lock)
Mark loves every little moment of his perfect suburban life. His beautiful home. His friendly neighbours and their children. His wonderful wife, whatever her name is.

But today there's a nagging feeling in his mind. A nagging headache building at the back of his skull. And worst of all, a nagging voice that has very different ideas about Mark's cosy world.

Hard Feelings by Philip Lawrence (A Fifth Doctor and Nyssa story, read by Sarah Sutton with Nicholas Briggs)
Nyssa is trapped in a collapsing building during a Cyber invasion - terrified, unarmed, and hunted by a lone Cyberman.

As the creature closes in, Nyssa's fear becomes something different. What drives her growing anger, and will she really seek a cruel revenge on her pursuer?

Cut-Out by Dominick Polion (An adventure from the worlds of Doctor Who, read by Duncan Wisbey)
A shadowy island, a secret weapon, an off-the-books case.

MI6 officer Dominick Polion has run impossible operations before - though never with the Doctor as his undercover asset.

Bring Me the Head of Dorium Maldovar by Nick Slawicz (A Twelfth Doctor story, read by Peter Forbes)
A long-forgotten dodgy deal by Dorium Maldovar comes back to haunt him, and a ruthless gangster has put a bounty on his head.

With nobody (and no body) to help him, he calls in a favour from the Doctor. And like Dorium himself, the Doctor is not the man he once was.

The Tip of the Mind by Peter Anghelides (A conversation with Doctor Sandra Urtiman, performed by Lisa Bowerman)
I would have you know that I set high expectations for my researchers.

If only I can get my team member Zoe Heriot to focus on her work, everything will work out fine.

Is Anybody There? by Benjamin Mackenzie (A Ninth Doctor adventure, read by Bronté Barbé)
A disturbing unseen figure calls out to Keena from the shadows. It surely cannot be her bullying father: he died long ago and far from this space station.

The Doctor arrives to help her - or is he just the creature's latest cruel manifestation?

1 out of 2 (50.0%) raters say this story requires a previous story.