Infinity pools are built as optical illusions where water seemingly has no boundary, slipping into nothingness, bleeding into the horizon. There could be no better title for Brandon Cronenberg’s latest identity crisis-as-body horror film, “Infinity Pool,” which arrives on the heels of 2020’s “Possessor.” Set at a high-end all-inclusive resort in the fictional country of Li Tolqa, “Infinity Pool” is …
