Fifty thousand pounds. That is the prize for solving The Oxford Mystery. The people of Oxford are gripped by the mystery trail game, suddenly announced on social media. The police struggle to control the crowds and the growing frenzy. Rachel Keen, a theatre nurse, and John Bamford, a police officer with a gambling problem, are swept up in the excitement. As the game unfolds, a man goes missing from Jericho, and Rachel becomes convinced she has a stalker. As Rachel and John’s paths collide, the mystery deepens, leading them to a spooky mansion deep in the Oxfordshire countryside. Things take a sinister turn. Lies are exposed. Lives are at risk. Who will be the first to solve The Oxford Mystery?