This story broke in the Security Scrapbook on March 24th. Unfortunately, the full BBC video could not be viewed outside of the UK at that time. A part of it is now available on YouTube.
This BBC report examines the "molka" phenomenon in South Korea: the proliferation of hidden wireless cameras in toilets and hotel rooms, and the culture of blackmail and revenge porn around it. "How many spycams can Stacey Dooley find in a love motel bedroom?"