In the 1970s, Tamil Nadu experienced a series of horrific murders. This podcast delves into the sinister criminal narrative surrounding a gang that exploited their trusted roles as customs officers to ensnare their victims. The murders of seven prominent business figures were uncovered only after the seventh victim was discovered. The perpetrators employed the drug Pethidine, which facilitated their heinous acts. This episode also explores how law enforcement conducted an investigation into the Pethidine killers, a case that would become a landmark in police history.