Five Things To Do in Edinburgh: Wednesday 31 October THEATRE: The Mousetrap. The Mousetrap is famous around the world as being the longest running show of any kind in the history of British theatre - with over 23,000 performances it is a play to be proud of. And to celebrate 60 incredible years on stage, it's going on tour for very first time ever. The scene is set when a group of people gathered in a country house cut off by the snow discover, to their horror, that there is a murderer in their midst. Who can it be? One by one the suspicious characters reveal their sordid pasts until at the last, nerve-shredding moment the identity and the motive are finally revealed. COMEDY: The Best of Scottish Comedy Halowe'en Special. With David Kay, Chris Forbes, Susie McCabe, Martin Bearne and host Susan Calman. The Stand, York Place, 8.30pm, £6 (£5), 0131-558 7272 MUSIC: Alice Cooper. The veteran panto-rocker comes to the Capital. A giant costume party is guaranteed as fans bid to outdo each other for the most outrageous Halloween outfit. Alice's incredible band lead the party - featuring Orianthi, Ryan Roxie, Tommy Henricksen, Chuck Garric and Glen Sobel - one of the great bands working in rock "n" roll, tearing into Alice's classics and tracks from latest album Welcome 2 My Nightmare. Usher Hall, Lothian Road, 7pm, £36, 0131-228 1155 THEATRE Batsheva Ensemble: Deca Dance: First performed in 2000, Deca Dance is a celebration of ten years of Naharin's work with Batsheva Dance Company. MUSIC: Matyas Gayer Trio: Refreshingly original piano trio from Hungary. The Jazz Bar, Chambers Street, 8pm, £6 (£5), 0131-220 4298