Whodunnit

We have been up to London again today. The weather was much better than last week no need for waterproof trousers today!
We had a nice lunch at Strada on the Southbank looking over the Thames, a glass of wine in the Cambridge then an afternoon matinee of the Mousetrap.
I went not expecting too much as the couple of people I know who had seen it didn't enjoy it but I liked it but whodunnit?.......