Noga Arikha began studying these patients and their confounding symptoms in order to explore how our physical experiences inform our identities. Soon after she initiated her work, the question took on unexpected urgency, as Arikha's own mother began to show signs of Alzheimer's disease.

Weaving together stories of her subjects' troubles and her mother's decline, Arikha searches for some meaning in the science she has set out to study. The result is an unforgettable journey across the ever-shifting boundaries between ourselves and each other.