Watch Insadong Scandal for Free: How to Stream the Movie Online at 123Movies. . A fabled painting from royal palace was discovered after 400 years. Once properly restored, it could fetch at least $40 million in the international auction market. Bae is the owner of the gallery which possesses the painting. She scouts top-tier restoration artist Lee to work on the painting. With Lee's expert stroke, the controversy surrounding the painting is slowly unveiled. As the painting's true form is restored, art experts in Korea hold a collective breath. Little do they know that they're only a part of a bigger scheme.