Revival of Philip Ridley’s Darkly Tragic Two-Hander. 1 hour 20, no interval Box Office: 0844 871 7632 atgtivkets.com Until 22nd June Ken Deed: 21st May Twenty years ago when Philip Ridley’s two hander was first performed it no doubt had a visceral impact, dealing as it does with a savage killing of a gay man in a public convenience. No graphic detail is spared in the gradual revelation of the horrific murder of the eponymous Vincent River.  I suspect however …