High-school principal Dr. Alfred Carroll relates to an audience of parents that marijuana can have devastating effects on teens: a drug supplier entices several restless teens, Mary and Jimmy Lane, sister and brother, and Bill, Mary's boyfriend, into frequenting a reefer house. Gradually, Bill and Jimmy are drawn into smoking dope, which affects their family lives.

Dorothy Short
as Mary

Kenneth Craig
as Bill

Lillian Miles
as Blanche

Dave O'Brien
as Ralph

Thelma White
as Mae

Carleton Young
as Jack

Warren McCollum
as Jimmy

Patricia Royale
as Agnes

Joseph Forte
as Dr. Carroll

Harry Harvey Jr.
as Junior