"Lanyard" (Warren William) and honourable factotum "Jamison" (Eric Blore) are in Havana on the trail of a rare stamp when they encounter "Patricia" (Frances Robinson) who wants to pinch their cab for an urgent trip to the airport. Charmed, the "Lone Wolf" agrees but after a few moments wishes he hadn't. It turns out that she is embroiled in a ransom plot that involves a kidnapped businessman, $100,000 and her poor old fiancé "Scotty" (Bruce Bennett) who is likely to fry if they don't get to the truth and free the victim in time. Of course, as soon as he is seen anywhere near the…