La Menace (1961)

Josepha is on the verge eighteen living with her drunken washed up actor uncle. She longs for the companionship of a group of her mo-ped riding peers who dabble in activities on the shady side of a legal dividing line. In order to get the semi-delinquent group to accept her, Josepha runs to the police with a tall tale about the local druggist, Savary. The police are looking for a sex murderer, and Josepha insists Savary is their man. What she does not know, however, can do her considerable damage.