Time Out says
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A series of unprepared big names star in this spoof murder mystery
The Park Theatre’s regular programming is certainly a bit on the hit-and-miss-side, but by thunder there are celebrities who love the place and are happy to donate their time to it. Ian McKellen is a particular fan, and has made several appearances at the place: he returns in pre-recorded form alongside Judi Dench in thie spoof murder mystery show, raising money to keep the Park’s tickets affordable.
The real USP, though, is the nightly special guest celebrity, who will – unrehearsed, and with lines fed to them via an earpiece – play the inspector attempting to crack the case, alongside the regular cast of Jez Bond and Mark Cameron’s show. Big names lined up include Gillian Anderson, Damian Lewis, John Bishop, Jim Broadbent, Simon Callow, Joanna Lumley, Catherine Tate and Ronan Keating, each of whom will give and audience Q&A after their performance. It seems unlikely there will be a schedule published, but they’re aren't any duff names and it is of course all for a good cause. As a fundraiser the tickets aren't cheap, but £10 standing tickets will be released daily at 10am.
After London it will transfer to Edinburgh, where the guests will presumably become more comedy orientated (and tickets rather cheaper).