Here are the key locations in the book:
* Detroit: This is where the main characters, Nick and his wife, live. The book explores their relationship and their experiences in the city.
* Nick's childhood home: The book frequently flashes back to Nick's childhood in a small town in Pennsylvania.
* Heaven: The book also explores the afterlife, where Nick's mother resides.
While Detroit is the primary setting, the story's themes and relationships transcend geographical boundaries.