So, I've tried all the standard methods. Checked the outlet, which is screw directly into the lath(yeah, is that even up to code?!). Magnet doesn't work, I've got a rare earth magnet, and the plaster is apparently too think to pick it up(it's about an inch thick, so this doesn't make sense). I though to use the window as a base, but from the center line of where a stud would be at the edge of the window, 16 inches from there, there is no stud(I drilled it).
I'm losing my mind on this.