Why You'll Love This
The screenwriter behind Arrival brings that same unsettling sense of cosmic dread to the page — and this time, the killer might exist across multiple lives at once.
- Great if you want: speculative thriller that blurs past lives with federal investigation
- The experience: brisk and increasingly eerie — unease builds quietly before it cracks open
- The writing: Heisserer thinks in scenes — lean, propulsive, with a screenwriter's instinct for tension
- Skip if: you want grounded realism — the premise demands serious metaphysical buy-in
About This Book
What happens when the patterns we use to prevent catastrophe start pointing somewhere science can't explain? In Simultaneous, federal agent Grant Lukather tracks threats for a shadowy Homeland Security division built on cold logic and statistical probability — until a tip about an explosion in New Mexico pulls him into a case that logic simply cannot contain. Paired with a therapist whose unconventional methods have uncovered something genuinely unsettling, Grant finds himself pursuing a killer across a mystery that keeps expanding its own rules. The emotional stakes are intimate even as the conceptual ones grow enormous.
Eric Heisserer, whose screenplay for Arrival turned first-contact science fiction into something quietly devastating, brings that same instinct for human-scale stakes to this novel. The prose moves with the efficiency of a thriller but keeps stopping to ask harder questions — about identity, memory, and what it means to be a self that persists. The structure rewards close reading; threads that seem separate develop a cumulative weight that earns its payoff. This is a book that treats its genre elements as genuine philosophical territory rather than decoration.