Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | The Downstairs Neighbor | 2021 | Helen Cooper (The Downstairs Neighbor) | Buy |
| 2 | The Other Guest | 2022 | Helen Cooper (The Downstairs Neighbor) | Buy |
| 3 | The Couple in the Photo | 2023 | Helen Cooper (The Downstairs Neighbor) | Buy |
Helen Cooper’s three standalone thrillers each take a different social situation — sharing a building, vacationing at the same hotel, appearing in a photograph — and mine it for psychological suspense. The Downstairs Neighbor (2021) introduced her talent for building tension from the mundane, and The Other Guest and The Couple in the Photo continued exploring how proximity to strangers can turn threatening.
Each novel works independently, offering a self-contained thriller experience built around the question of what the people around us might be hiding.