Chief Kim does something miraculous. It turns a show about accounting fraud into an absolute delight. Bookkeeping and balance sheets may not sound especially sexy, but if you’re in the mood for a quirky comedy underpinned by serious themes, you’ve come to the right show. Namgoong Min is stellar as a petty crook who decides that taking down the man is more fun than working for him, and he’s surrounded by an off-beat band of misfits whose superpowers range from strategic coffee delivery to aggressive janitorial espionage. I also highly appreciated Nam Sang Mi’s female lead, a sharp, capable career woman who was never relegated to token love interest.

While I don’t claim to have emerged from the show as an expert on cooking the books, the writer’s clearly done his research, displaying an impressive command of both the intricacies of financial fraud and the real world pain that such chicanery can cause. The drama argues that the devil is often very much in the details, showing how numbers on spreadsheets can destroy lives. While there’s tons of broad humor, the rage at the specific ways the system’s rigged is palpable, and the show knows how to land its serious moments as effectively as its silly ones. Best of all, it allows its characters to grow and change. Its sinners aren’t magically transformed into saints, but they learn how to come together to fight for a better future for themselves and others.