“Castaway Diva” (무인도의 디바)

There is a lot to unpack in “Castaway Diva.” On the surface, it’s about a teenager who has been trapped on an island for 15 years, is rescued, and pursues her dreams of becoming a K-pop idol. And that is an interesting enough premise as it is. However, the real thrust of this K-drama is the long-lasting ramifications of abuse, even after the victims have grown up and have long been separated from the abusers.