Apple TV's 'The Last Days of Ptolemy Grey' Is Certainly Memorable — Is It Based on a Book?

Apple TV’s miniseries ‘The Last Days of Ptolemy Grey’ explores how a fictional treatment for dementia changes the life of an aging widower. Is it based on a book?

Source: https://www.distractify.com/p/the-last-days-of-ptolemy-grey-based-on-a-book