Dangerous Supplement uses footage from American fighter planes bombing North Korea, attempting to capture a landscape, which keeps drifting away. As Yoo has written, the film is “an incomplete index for the memory, a substitute for a vision that is yet to be born”. That vision was born with Songs from the North, a musical essay film constructed from images shot during three visits to North Korea interwoven with extensive archive material: television entertainment, popular films, propaganda videos and other archival footage.