If you liked the Pale Cocoon anime, the Anime-Planet community thinks you'd like:
Strange things have been happening at a local high school... mysterious disappearances, strange powers and brutal murders all emerge amongst kids who, up till now, have been perfectly normal. Even the Shinigami (Angel of Death) herself has been sighted. What's happening? The answers lie in the mysterious creature known as Boogiepop...
While Pale Cocoon is one 30 minute OVA and BPP is a series, both share very much the same feeling of dark noir and mystery. In BPP, you get confronted by strange things happening such as phantom spiders that seem to feed on people's hearts - and in Pale Cocoon, no one really knows that the world is anymore, and therefore you get a similar sense of "ok, why are they doing that?" or "ok....and that happened...why?"
Both series are rewarding when you can figure them out and seem to make you want to keep watching them to see if calamity is eventually resolved.
Tomoru Shindo yearns to become a pilot and taste adventure, but the rigid structure of his advanced society leaves him bored and wishing he was born into the chaos and romance of the past. This simple wish turns into reality when a chance encounter with a Dr Kanzaki gets him involved with the greatest conflict that will engulf Earth yet: the invasion of Earth by the alien race, the Evoluders. Dr Kanzaki was building an Evoluder whose data had reached Earth, and Tomoru finds that he can link to it and access its memories. Its name is Orgun, and seems to have a connection to Tomoru, and Tomoru's past...
If you liked Pale Cocoon's vision of a bleak future with signs for hope, then you may enjoy Detonator Orgun, Detonator Orgun has similar themes and plot twists, but is a longer anime with mecha action,
A mysterious new hacker known only as the Puppet Master threatens to create chaos, erasing and rewriting the memories of his victims: humans who have cast away their physical body to become cyborgs. Is he an evil genius, or could he signal the beginning of a new age in the relationship between man and machine?
Languidly paced and visually striking forays into the cyberpunk genre; each with a slightly less than obvious plot. Both also feature a key and beautiful moment involving images transposed over a song.
In a dystopic city of the future, there has been a rash of killings at the hands of prototype robots. These anomalies from the company Locus Solus are making headlines, and have caught the attention of the cyborg Batou and the crew of the Section 9 special forces. Yet beneath the random violence, a sinister plot is unfolding -- a situation so dangerous that it threatens not only Batou, but innocent humans and cyborgs alike. Can the team of Section 9 unravel the mystery of these murders before they suffer the same fate as the victims?
GITS Innocence and Pale Cocoon have a very similar buildup. Both are pretty much story only, have interesting topics that are more likely to appeal to an older audience and a gloomy atmosphere. On top of all of that even the subjects are the same as they both have technology and take a look at the human nature embedded in their stories.
Has someone done something to hurt you or the ones you love? Are you seeking revenge? Rumor has it that there’s a website that can service your needs. Titled “Hotline to Hell”, it contains a form that can be accessed only at midnight. Type in a name, and the Hell Girl will carry out your bidding – for a price. For though your appetite for revenge will be satisfied, your soul will also be condemned to hell after you die. But who is the Hell Girl, and does she care whether your revenge is justified? Apparently not, as long as she gets more souls…
Jigoku Shoujo and Pale Cocoon have one thing that really sets them apart from other anime: the pace. Both have a slower pace, but tell a story that is different, talks about human esthetics and has a dark feeling.