Nozoki Ana aka A Peephole is a 42-minute long OVA (or 55 minutes if you watch the extended version) based on a manga of 13 volumes. I dropped the manga at 2 volumes because it had a boring porn-story with some extremely dumb and equally boring characters. No need to worry about that though, because what little story the manga had, it wasn't put in the anime. The few interesting things in it were just left out, and all that we've got left is sex, masturbation, rape and the obligatory beach scene. Oh, and also boobs and panties. Almost forgot to mention those...
Apart from that there's little I can say here:
- the most important characters consist of a perverted peeping girl, a spineless guy, a big-boobed gal, and a would-be rapist. Oh, and they all seem to like sex. I guess you could call the main guy's internal struggle ("should I peep or not?") somewhat interesting, but in the end the makers of the anime didn't seem interested in that stuff. They were more interested in the size of the boobs of his girlfriend.
- the artwork is generic stuff, with character designs you could use in a hentai too
- the animation is the same as what you'd get in a low-budget hentai
- the music is generic, forgettable, and didn't add anything to the experience
- the voice actors surprised me, because they weren't actors in any hentai. Then again, the VA of Emiru (the main girl) only worked in this anime, so you can really feel that this OVA had to be done as cheaply as possible.
Overall: forgettable, hateable to a certain degree, and most certainly a big waste of time. You might be better off searching for hentai with a good plot, or at most you could give the manga a try.