Literally, Serial Experiments Lain is about a young girl's reluctant march toward digital martyrdom. Today, Lain's story resonates more so as an allegory about the perils of forging one's identity—an alternative identity, however false, misguided, perverse, delusional—using the internet. The Wired is Lain's world.

Is Serial Experiments Lain like Evangelion?

Neon Genesis Evangelion is a very psychological show, and Serial Experiments Lain is the same in that regard, plus they both have a dark science fiction setting.

Is Serial Experiment Lain confusing?

This anime is pretty confusing, but not nearly as confusing as many make it out to be. ... It brings up a lot of issues actually quite clearly, and pretty much directly explains what is going on in the last few episodes. Everything between can feel confusing though.