‘Is she a television personality?’ my mother persists eagerly, hankering after the days when she, too, was a name and hung out with the stars.

I smile enigmatically, not wanting to ruin it for her.

‘I can guess who it is,’ she says smugly, mollified by her own imagination.

The doorbell rings. In my semi-drunk state it doesn’t sound like the doorbell. It sounds like an alarm, harsh and urgent and motivating, and the three of us are galvanised out of our alcohol-numbed torpor into action, struggling to our feet in uncomprehending panic.

‘Who is it?’ my mother asks, keeping her voice low as if we’re in hiding.

I open the door and it’s my upstairs neighbour, Lucy. She comes in full of drunken merriment. ‘Hey! I saw your light on and I—’ She suddenly notices my parents. ‘Oh, hello!’

I can guess what my mother is thinking behind her frozen face. She hates people who drop in unexpectedly. She thinks it’s the height of rudeness.

‘Bloody Mary?’ I ask Lucy.

‘Ooh, yes. Is this a party?’

Lucy’s got curly blonde hair and the kind of cheerful superficiality that actors are good at during those times when they’re not talking about a new role. They take acting seriously, but they treat life with a very light touch, which is a welcome relief if you belong to my family. Lucy’s wearing a black unstructured asymmetric dress with a lot of zips. Comme des Garçons. I know because I sold it to her. She’s playing Lady Macbeth at The Gatehouse and she still has her stage make-up on. She’s electrified with post-performance adrenaline.

Lucy’s ambition is to direct. She’s been in all the best crime dramas: Scott & Bailey, Silent Witness, Endeavour, Shetland. Whenever she’s in something, she invites me upstairs so we can watch it together on her flatscreen TV and she points out the flaws in the acting, things that I’d never have noticed – like when someone fluffs a line, or winces before the knife’s been raised, or fails to respond to the scene.

And that’s the way she’s looking at me now, slightly critically, as if I’m not playing the part of host very well, so I introduce her to my parents and while I mix another jug of Bloody Marys she fills us in on how the night has gone. The theatre was packed. There had been a heckler. The audience was so caught up that at the end there was a long, thick silence after Malcolm’s closing lines.

‘Malcolm McDowell?’ my mother asks hopefully, ready to claim acquaintance because he bought her a drink once.

‘Malcolm. Duncan’s son,’ Lucy says. ‘“This dead butcher and his fiend-like queen”.’

My mother’s disappointed. ‘A dead butcher?’ she echoes, confused.