Citizens theatre, Glasgow The novel is adapted with equal parts wit and horror to capture the depravity of a notorious crime in Glasgow On the bare brick wall backing Jen McGinley’s set – half courtroom, half saloon – there is a faded poster of The Searchers, John Ford’s 1956 western . The whisky-swilling hard men who haunt the clubs and dives of The Long Drop may well see themselves as cowboys. They are double dealers and grandstanders, full of bluff and bluster; sometimes cosplay baddies, acti