 If you liked
Perfect Blue
|
 ...then you might like
Denpa-teki na Kanojo
|
Both are seinen murder mystery and suspense thrillers that have serious tone and don't mind showing gore. Both toy with issues of self-identity and involve solving a mystery to identify murderous stalkers.
Both are thrillers with a stalker and mysterious murders with lots of psychological issues. Great artwork and some gore too. However, there are some big differences as Denpa Teki na Kanojo is a school life setting with a male lead & a harem theme to it as well, while Perfect Blue has a female lead set in the pop industry.