Why does my socket.io code emit the message to everyone connected, when I specifically wrote socket.in(room)...?

I am trying to set up a webrtc app. For now, it connects two people when they click connect. But if I have multiple connections open, and then when one of the people from the very first connection clicks disconnect, it literally disconnects EVERYONE who has a connection. I tried this with 3 connections, and disconnected the 2nd connection, and that only makes the 3rd connection disconnect, while the first is still connected. So basically, it's a downward spiral. If a connection disconnects, then all connections created AFTER that one connection also get to disconnect. But all connections before that connection are still active.

I think it has something to do with the socket.io code, because in the console.log I am receiving the message from socket.io as someone in a totally different connection disconnects. Server code:

        socket.on("sessiondesc", function(sessiondesc)
        {
          if (sessiondesc == true || sessiondesc.type === 'answer')
          {
              //the random room is generated before the socket.on sessiondesc thing. 
              socket.join(room)
          }
        socket.in(room).emit("sessiondesc", sessiondesc);
        });

        socket.on("quit", function(quit)
        {
            socket.leave(room)
        });

This is client code:

    socket.on("sessiondesc", function(sessiondesc)
    {
     //stuff I do here with webrtc... like create offer, answer, and such. 
     else if (sessiondesc == false)
     {
      pc.close();
      pc = null;
      console.log("GOT THE FALSE SESSION DESC! GOT IT");
      quit = true;

      socket.emit("quit", quit);
      }


        document.getElementById("disconnect").addEventListener("click",   function(e)
         {
          console.log("The person clicked disconnect!");
          quit = true;
          sessiondesc = false;
          socket.emit("sessiondesc", sessiondesc);
          socket.emit("quit", quit);
          pc.close();
          pc = null;

    });

So basically on all the other connections that disconnect, I can see the console.log("GOT THE SESSION DESC") thing... And I'm thinking like, why are these other rooms getting this sessiondesc? They shouldn't be, I'm only emitting it to a specific room!