A typical 70s Italian coming of age film, original and good music, but with some quirks, interesting but not fantastic photography, poor and at times confused storyline (e.g. the role of the wolf-dog, and where does the boy come from?) with poor dialogue, nice ambiance.
The reason it is still (relatively) well-known and sought after is probably the nude scenes (including typical 70s pseudo-coitus) involving an 11 and 13 year old girl with an older teenage boy (Eva Ionesco and Laura Wendel) - it is interesting from a socio-political point of view to see how these representations of very young adolescents was considered acceptable and normal in the whole of Europe (and US) 30 years ago, whereas now it is more than taboo.
The story revolves round bullying of one girl (Laura) by the other two characters, and her discovery of sex, a quite accurate representation of an aspect teenage life. The character of Eva (Silvia) does not evolve to the very end of the film and already appears very versed in the erotic arts - there is no "coming of age" for her: she is a very vain young girl who is already aware of her sexual charms, but ultimately is just used and ends the film crying like the little girl she really still is. The boy is an utterly despicable bully, while Laura comes across as a very naive and weak victim.