Obsessed

Phelps dives deep into the minds of his subjects, but I'm curious what motivated him to explore this particular angle in true crime storytelling.

The book made me reflect on how fragile boundaries are in relationships and how easily things can turn dangerous. Has anyone experienced something similar?

There are so many stories of obsession out there—what do you think led Phelps to choose these particular cases, and what might have been left out?