I hope we're past premises that need to be, um, defensible, you and I. Way past it? Good, good. Deadgirl also sometimes has a dopey, WB-drama-style, boys-coming-of-age feel to it, but at least it's captured in an urban, working-class greeny-grey, rather than Everwood sunshine. A story with some significance does get told in there somewhere. Try thinking of it as a low-rent Picnic at Hanging Rock for horny, young boys—really horny boys.
I watched it last night and can't stop thinking about it—icky, yicky, sticky, and loaded with gore and grime. Filthy and disturbing, yes, but oddly arousing, at least to my socially cast-out, inner 15-year-old. And don't worry—the "deadgirl" of the title more than gets her redress.
Read an interesting interview here with the co-directors.