Introductory intertitle reads: "Ask a London policeman what he thinks about fog and if you survive you're lucky. Hyde Park, like this is ideal."
L/S of picturesque scene in the park in good weather. "...but, when the first blankets of the fog demon descends, familiar places grow dim and distant." L/S of a scene in the park in fog. Two women walk along, one pushing a pram. Two children walk behind them pushing hoops along. Low angle shot of a large sculpture in the park (Boudicca / Boadicea) L/S of Horseguards passing the camera. Shots of the Houses of Parliament (?) and Big Ben in the fog.
"The sun puts up a brave show for a little while - " M/S part of the Houses of Parliament. "Then the River, another ally of the fog, joins in with its insidious mist." View of the embankment in fog - buses and pedestrians pass the camera. Trafalgar Square in the fog - pedestrians and traffic. The lions and fountain are seen. "Up Regent Street, where the traffic struggles through the gloom" Dusk shot of traffic in this fog. Building which looks like what is now Liberty seen in M/S. Policeman directing traffic including a bus and car. Piccadilly Circus seen on a sunny day from a high angle. End of film missing I think.
It's a real pea-souper!
Was an item in Pathe Pictorial issue number 568.
Safety print exists.