MERRY XMAL

CHICAGO—The scene is so perfect that it should be out of some damn movie. A dark club with black cinder block walls, a sweaty crowd pressing against the stage, four sullen, stonefaced musicians of mixed gender setting up a throbbing rock pulse fronted by a strikingly beautiful Aryan blonde singer dressed head-to-toe in black, miming and whirling her fists around and singing in German.