There Has to Be a Twist in M. Night Shyamalan's Old, Right? Here Are 4 Theories

Could these beach dwellers actually just be reliving bittersweet memories with some horrifying weird symbols and corpses thrown into the mix? Maybe. One less-convoluted explanation, put forward by Reddit user TheDumbestTimeline, is that the parents have dementia. It's possible they're simply experiencing hallucinations of their kids growing up at the beach. The film title is, in fact, Old, and Shyamalan has explored dementia (specifically the symptom of sundowning) before, most notably in his 2015 film The Visit.