An envoy from one of the most powerful political organizations in the world approaches the detective Drongo with an offer to collaborate. He asks Drongo to conduct an internal investigation within the party and identify the "mole"—the employee through whom completely secret political information is leaking. Drongo readily takes the case.
During the investigation, information about the organization’s illegal activities accidentally lands in Drongo’s hands. And already the next day, Drongo is hunted. The detective uses all his skills to evade his pursuers, but at one point luck turns against him, and the killers manage to corner Drongo…