The Juventus players celebrated their second goal, a roaring island of black and white in a vast, desolate sea of blue and black.
On the pitch, the Inter players looked shell-shocked.
Stefan de Vrij stared at the spot where he'd made his mistake, his face a pale mask of horror.
"A gift! A complete and utter gift from Stefan de Vrij, and the predator Dušan Vlahović does not miss!" the commentator lamented, his voice dripping with drama. "From a lucky lead to a catastrophic deficit in the blink of an eye! The league leaders are imploding in the Derby d'Italia! Thirty minutes left, but this feels like the end of a chapter!"