In the fall of 1916, New York housemaid Augusta Steinbach fell in love with a man she met through a matrimonial advertisement in her local newspaper. She traveled to Detroit to marry her correspondent, but in March 1917, she mysteriously disappeared. What began as a routine search for a missing person turned into a baffling case of deception, bigamy and murder. Follow detectives as they unravel the tangled web spun by Michigan's original lonely hearts killer—a criminal mastermind the Detroit News dubbed 'one of America's master outlaws.'