Croft says that as dark and twisty as Rachel can be, her rare, lighter. Official website of Edinburgh Festival Fringe, the largest arts festival in the world. If I ran the show, I'd also flash the words “THEY'RE BANGING” in psychedelic. TV dramas like Boardwalk Empire, The Wire, and again, Fringe. Croft says that as dark and twisty as Rachel can be, her rare, lighter.