Whodunnit? Ask Emma Thompson and her surprise super-sleuths
Ian McKellen and Sanjeev Bhaskar will also take to stage and solve a crime without rehearsal in starry fundraising drama at London theatre Actors have nightmares of going on in a play for which they haven't been given a script. But some of Britain's best-known performers " including Sir Ian McKellen, Dame Emma Thompson, Harry Hill and Sanjeev Bhaskar " have volunteered to endure that sweaty scenario for one night at …