4. The Camera: A Witness Turned Weapon

Cameras, once simply tools for capturing memories, have evolved into powerful instruments in the hands of thrillers' protagonists and antagonists alike. They can be used for surveillance, blackmail, and even murder.

Dennis Lehane's Shutter Island is a psychological thriller that explores the power of perception and observation, often through the lens of a camera. While not centered around a camera, the novel highlights how images can be manipulated to create a distorted reality.