From UFOs to psychic powers and government conspiracies, history is riddled with unexplained events.

You can turn back now or learn the stuff they don't want you to know.

A production of IHeart Radio. Hello, welcome back to the show.

My name is Matt.

Our colleague Noel is on an adventure.

And we'll be returning soon.

They called me Ben.

We're joined with our guest super producer, the one and only Nomes Griffin.

Most importantly, you are you, you are here.

That makes this the stuff they don't want you to know in what may potentially be a two-parter.

This is going to be a deep dive, folks, and thank you for tuning in.

We previously explored cults you've never heard of.

And in that conversation, you may remember we noted that many of those groups we mentioned

could themselves be the subject of their own episode entire or indeed a series.

So we're continuing our exploration with one of the most infamous and dangerous cults

in recent Japanese history.

This is the story of what is now known as Aleph, better known in the West, as Omshin Rinqio.

It's a story that we cannot tell without first telling the story of its founder,

uh, who went by the name Shoko Asahara.

Oh, yes. Oh, yes. And this story has been talked about a whole bunch since the mid-1990s,

when some of the major incidents that we're going

to be talking about occurred. Much of the reporting that at least I've seen Ben came out of

...