When Cape Fear amps up the chaos and leans fully into its psychodrama potential, it can be thrilling. On a formal level, almost everything here is still working; Nick Antosca has a specific tone and aesthetic in mind that borrows from previous versions (particularly the 1991 film) in service of something new. And in episodes like “Possum,” directed by Trey Edward Shults of Krisha and Waves fame, we see glimpses of a pulpy yet thought-provoking t…