I went to an exclusive event on the weekend. It was called 'The Secret Listeners' and it was about the goings-on in a beautiful country house in some parkland near where I live.

I have known for some time that Nazi officers had been held prisoner at the Trent Park mansion in London's Cockfosters - and I had always thought it was a bit odd that they should have been kept in a beautiful house that was formerly the home of millionaire Philip Sassoon in the early 1900s. Now, I know why Nazi officers were imprisoned there in the lap of luxury. The entire time they were being spied on by a troup of German refugees, mainly Jews, in the cellars below them - and 'The Secret Listeners' tour of the house explained just how it worked. Big microphones were hidden all over the house -sometimes in plant pots - and while the German officers relaxed in their library or watched films, they talked... and talked...

They revealed vital facts that Churchill might not have known otherwise until the end of the war. They heard confirmation for the first time that an incredible estimated five million might have been killed in war crimes. They heard about the gassings. And, perhaps most surprisingly of all, they heard misgivings about Hitler.

Yes, during this fascinating experience, which incorporated the dramatic talent of the Pascal Theatre Company (acting out the parts of German officers and war refugees) against the backdrop of actual recordings from the listeners, the most startling revelation to me was the voices of German officers who regretted what was going on. There were two groups among the prisoners - those who were with Hitler and those who were not. And those who were not spoke up, wondering how humanity was going to forgive them for the terrible acts of which their nation was guilty. It was a relief to hear their horror.

The Pascal Theatre Company is currently engaged in more research and is interviewing more refugees and people associated with Trent Park at the time. Their findings will feed into a new performance at The Jewish Museum in London. And a permanent record of the project will be available at the Jewish Military Museum.

Look out for more performance wonders from The Pascal Theatre Company which specialises in plays which explore cultural identity and exile. And check out this video about the making of The Secret Listeners.