A scandalous rumor about Mi-jin (Go Won-hee), an up-and-coming actress, is included as a gossip item in a stock market tipsheet (''jjirasi'') and propagated by the tabloids, causing her to kill herself in an apparent suicide. Woo-gon (Kim Kang-woo), Mi-jin's devoted longtime manager who dedicated everything to building her career, initiates a vengeful investigation to expose the sources of the rumor. With unexpected assistance from tabloid distributor Mr. Park (Jung Jin-young) and legendary telephone tapping Baek Moon (Ko Chang-seok), Woo unravels the opaque and lucrative world of secret tips and salacious rumors.