Kojak (1973)

S3E11 No Immunity for Murder

Kojak is determined to prove the innocence of a sex worker and her boyfriend in the killing of a bookkeeper. His quest for the truth puts him at odds with the FBI, who are not pleased with his relentless digging into the case. As he races against time to uncover the real culprit, Kojak faces obstacles from federal agents who want the investigation closed.