When a clever but ordinary sales tech, inspired by a murder that hit too close to home, invents a device that can record sounds from the past, he puts himself, and the entire world, in grave danger.

What if we could walk into any room, anywhere in the world, and hear every conversation that ever took place there? The Past Speaks dares to ask… and answer that question. Martin Clement, desperate to solve the murder of his grieving wife’s twin sister, gathers a team of experts to build a device that can record sounds of the past….but, the NSA and the powerful tech corporation have other ideas.