Big, wealthy corporations (and families) taking advantage of the working class is the catalyst of many K-drama revenge plots. This one sees Jang Ho-woo devise a plan to infiltrate the accounting firm whose actions led to his adoptive father committing suicide. Surprisingly, Ho-woo is hired straight after high school, catching the attention of the VP's son, Han Seung-jo. Although most accounting terms go in one ear and out the other, the tension, stakes, and relentless climb to the top are always crystal clear. As the scope of the corporation unfolds, rooting for Ho-woo's triumph is a solid hook, even if it's a given.

Choi Jin-hyuk excels as the cold, jaded son of the Vice President, burdened by an unknown but heavy hatred of his father. He balances a scowl and subtle intrigue in every frame without looking cartoonish. How Han Seung-Jo plans to use Jang Ho-Woo (unaware of Ho-Woo's revenge) is still a mystery. But after releasing his vitriol in a tense elevator scene with his father, it's hard to look away from the havoc bound to ensue.