Double Agent 73 (1974)

Underworld drug king Toplar is flooding the market with lowgrade heroin Agent 99 gets a bit too close to the truth but manages to gasp out a clue as to the identity of Toplar he has a scar Jane Agent 73 is called in to find Toplar and gets a camera implanted in her breast in order to photograph the bad guys she dispatches so headquarters will be able to identify Toplar when she finds him Meanwhile she begins falling in love with fellow agent Jim