From the Kickstarter description:
In May of 1923, an American businessman dies while abroad. Investigators are dispatched to try to make sense of it, and uncover a hidden world of conspiracy, diplomacy, and covert operations gone awry. Who was Earl H. Ellis? Businessman, or spy? Was his death accident, or murder? And why was the last man to have contact with his ashes found catatonic and weeping while clutching them to his chest? It's up to you to solve this real-events-based mystery from author Lisa Steele.