  Recently a purportedly novel solution of the vacuum Einstein field equations
was discovered: it supposedly describes an asymptotically flat twisted black
hole in 4-dimensions whose exterior spacetime rotates in a peculiar manner --
the frame dragging in the northern hemisphere is opposite from that of the
southern hemisphere, which results in a globally vanishing angular momentum.
Furthermore it was shown that the spacetime has no curvature singularity. We
show that the geometry of this black hole spacetime is nevertheless not free of
pathological features. In particular, it harbors a rather drastic conical
singularity along the axis of rotation. In addition, there exist closed
timelike curves due to the fact that the constant r and constant t surfaces are
not globally Riemannian. In fact, none of these are that surprising since the
solution is just the Taub-NUT geometry. As such, despite the original claim
that the twisted black hole might have observational consequences, it cannot
be.
