Agents: find the spy. The spy: escape the vote, or name the location.
Each round one player is secretly the spy. All the other players, the agents, see the same location on their own screen; the spy only sees «You are the spy». Everybody sees the list of all possible locations.
Ask each other questions about the place aloud, starting with the player WUDD names. Answer so the other agents trust you, without giving the place away to the spy.
The vote opens when the time is up, when more than half of the players ask for it, or when the host opens it. Everybody, the spy too, votes in secret for one other player and may change the vote until it closes.