Currently, the picture on IMDb for this film appears to be some sort of porno film--NOT "Young and Wild"! Also, like most 'youth run wild' films of the era, the teens in this film are well into their 20s--and near 30 in some cases.
The film begins with three punks stealing a car and going joyriding. However, this isn't the end of it by any means. Next, they attack a young couple--beating the boy and nearly raping the girl. On their way from this little frivolity, they run over a woman--killing her instantly. Clearly, these young men are thugs--and not just the kinda bad guys from most 50s movies of this genre. When the police investigate, the punks are able to concoct an alibi but they later seek out the young couple--to make sure they don't identify them in a police lineup. And, after being beaten up again and threatened at knifepoint, it's not surprising that they recant their initial identifications. Not surprisingly, this only emboldens the punks. What's next? See this gritty film for yourself.
This film actually surprised me. While it clearly appeared to be just another film about those crazy youths, it was far deeper and far better. It was NOT just another mindless exploitation film but a well-crafted low-budget film.
By the way, look for the young cop during the interrogation scene--it's Gavin MacLeod.