The personal and social tragedy of drug addiction with its evil accompaniment, drug traffic. Over the side of the silent liner in the darkness slips the package of smuggled narcotics, introducing us to the complex problem which involves all races and classes of man. We see many aspects of addiction - the addict preparing an injection, a group waiting tensely for their dope peddler; agents preparing and adulterating the illegal product; the police catching a pusher red-handed. International and national authorities are working from two angles - suppression of the illicit traffic; and where possible, rehabilitation of the addict.