What Is a Panel Saw & Its Uses (Horizontal vs. Vertical)

This young man’s girlfriend was cleaning his house to be nice. She stumbled upon a strange room hidden behind some a loosely installed panel. Inside she saw come blankets and an old phony her boyfriend claimed he lost.She then confronts him about it and he is nervous and shaken. He asks her not to record. He’s adamant that he has no knowledge of this room.What makes it weird is his reaction, he doesn’t want any video of this but at the same time denying the knowledge of its existence. Do you thi