Dae-kwon (Jung Woo) is the head of the provincial government team who is unemployed and on the verge of being demoted. He receives a mission with his team members to monitor the family of a politician (Oh Dal-su) who is quarantined at home 24 hours a day upon entering the country from overseas. The wiretapping team members move into a neighboring house undercover and discover new secrets one by one as they monitor all the suspicious sounds and actions of the family, from requests for radio stories to rustling noises in the middle of the night.
