First Movie: A determined policeman attempts to take down a cunning mobster, who has corrupted his colleagues. Despite discovering his own brother's collaboration with the gangster, the cop gathers evidence but is killed by his corrupt partner, who then burns the files. Second Movie: A special agent-turned-investigator masquerades as a policeman to protect a Mafia informant. After gaining trust but arousing suspicion, he confronts assassins sent by the informant's former lover. Wounded and betrayed, he is ultimately ambushed and killed by the corrupt partner, who then takes control of the police station. Both movies explore themes of crime, betrayal, and the quest for justice within a corrupt system.