It's the winter of ’23 and the border towns are under a deep freeze, with ferries ice-bound in the Detroit River, snow burying the streets, and power interruptions. Prohibition is still the backdrop to daily life, but opium smuggling and human trafficking are a pair of disturbing additions to the mix.<br/><br/>When one of Detective Campbell's late-night walks is abruptly interrupted by a loud crash and a grisly thump, he kicks into high gear, summoning his old friend Dr. Laforet to work on the case. Shortly afterwards, a grim find surfaces in the Detroit River, and both cops and rumrunners race to connect the dots.<br/><br/>With a whisper of the occult in the chill Windsor air, Campbell and Laforet are caught up in another mystery.