High School Confidential!

Russ Tamblyn stars as Tony Baker / Mike Wilson, a young police officer who poses as a student to infiltrate a high school and investigate a narcotics ring. He befriends Gwen Dulaine (Mamie Van Doren), a married woman, and pupil Joan Staples, while also navigating the wrath of teacher Arlene Williams (Jan Sterling). With help from an undercover cop, Quinn, Tony ultimately exposes the source of the narcotics ring, led by the enigmatic "Mr. A" (played by Charles Halton in an uncredited role).