Judge Crowdy Lobbett is a man of justice, an upstanding pillar of American society. And now he's a man in deadly peril, tailed across the Atlantic by the ruthless Simister gang.

Luckily for Judge Lobbett, however, he makes the acquaintance of one Albert Campion during his voyage to England. The enigmatic amateur sleuth bundles the Judge off to the country house of Mystery Mile, where it's a race against time to keep the Simister posse at bay - and to pinpoint the identity of the mastermind behind their criminal empire.