1st person adventure game in a school
 

Trying to find a game for a friend, but my search so far has come up with nothing. Here's how he described it:

"It's a point and click game. It's played in the first person (Not that it's 3d)
I think it used VGA-type graphics. It had voices in them.

It was set, I believe, in a sort of high school. And there were a lot of crazy conspiracy stuff. Like some students, I think, were secretly aliens?"

Anyone here happen to know what he was talking about?