Wipe that grin off your face, part 2 of Ray Russell’s “Sardonicus” is here, and it’s taking a turn for the grim. A turn, if you will, like a smile dropping into a frown. We promise it’s better than the mouth prosthetics in the 1961 “Sardonicus” film at least, even if it does lack the “punishment pole” gimmick. William Castle was nuts y’all.