Connecting a twin outlet and switch after repair

Hello. Today, the outlet was smoking, I turned off the electricity, opened the outlet, it is on the same socket with the switch. and adjacent to a power outlet in another room. Smoked insulation. We have been at home since 1982. Well, in general, I cleaned the wire and shook it with electrical tape. Attached wires as they were. That is, two wires were screwed to one terminal and the other two I cleaned and attached as it was to the other terminal. But in the middle of some kind of wiring comes from the switch, I did not understand where to plug it into the jumper. The wires are not colored, just three wires, one to the switch and two with two contacts (4 in total) to the two terminals of the socket. Tell me. where this posting - to plug a jumper? Please help, otherwise we have an electrician, well, very expensive. Thank!