noun, noun or participle which takes 'suru', intransitive verb
theatrical blackout; stage blackout
Primarily a theater term: the lights go out on stage, often for a scene change or dramatic effect. Also used metaphorically for a sudden dark turn in a situation.
舞台が暗転し、次の場面に移った。
The stage blacked out and moved to the next scene.
noun, noun or participle which takes 'suru', intransitive verb
Figurative extension of the theatrical blackout: a situation, mood, or condition suddenly worsens. Often used in news or commentary.
試合は後半に暗転し、逆転負けを喫した。
The game took a sudden turn for the worse in the second half, and they lost after being ahead.
景気が暗転する兆しが見え始めた。
Signs of a rapid economic downturn began to appear.