I suppose it's a three-way. The red light it's the only hot wire. It was like that when I came to the house. But the wire on top of the red it's going to other room switch and light. The one next to it. It's going to the room light. And the one under it's going to the other switch same room. I don't know where the other one is going.
It's in a room with two entrances. One light. And no the other room switch and light are not working.
I found this too. But idk if it was from there.