I don’t remember all that much about this one, which probably means that I found it somewhat impenetrable, as is sometimes the case with Caryl Churchill plays.
The Royal Court has a tiny stub on-line for this production.
Super cast with Saskia Reeves and David Thewlis. Max Stafford-Clark directed it.
Here is the Theatricalia entry.
Below is Michael Ratcliffe’s Observer review:
Ratcliffe on Icecream Sun, Apr 16, 1989 – 43 · The Observer (London, Greater London, England) · Newspapers.com
Below is Michael Billington’s Guardian review:
Billington on Icecream Wed, Apr 12, 1989 – 45 · The Guardian (London, Greater London, England) · Newspapers.com
I have the play text, so perhaps I should have a read to refresh my memory about this play/production. Or perhaps Bobbie can help.
Postscript
I have now reverted to the text and it sort-of comes back to me. The diary also tells me that we sat in seats D9 & D10 and that they were £10 tickets that Saturday. Good value, I suppose.