In Northern Ireland, from the late 70s to the early 90s, the IRA killed over 40 alleged informers.

But the man who often found, tortured and sometimes killed these people on behalf of the IRA

was himself an informer, a secret British army agent with the codename Stakeknife.

Who gets to play God? And why me? Why my family? When lies are still being told to this day,

who do you believe? I wouldn't even know where to start and I'm with the area.

Steakknife. Listen first on BBC Sounds. This is the BBC.

Hello, I'm joined today by Cathy Burke,

theatre director, writer, actor,

whose films range from nil by mouth

through Tinker-Taylor Soldier Spy

to Absolutely Fabulous the movie

and whose wealth of TV work

includes walking and talking,

which she wrote and starred in as Angry Nunn

and perhaps most famously, Gimmy, Gimmy, Gimmy.

With Cathy, it's comedian Tom Allen,

who's appeared all over the place from live at the Apollo to loose ends and just a minute,

and whose roles as an actor include Young Pip in Radio 4's bleak expectations.

Kathy Burke, would you start us off with your choice of a good read?

Okay, so my choice is Hangover Square

by Patrick Hamilton.

And yes, I've sort of

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