Jang Hyun is in the leasing business and he lives with his son Byung Cheol. One day he gets a call from his daughter-in-law in the States that she's coming to Korea for a while and will be staying at Jang Hyun's house.
Jang Hyun goes to pick her up from the airport and Byung Cheol calls his girlfriend for some mature fun, but the daughter-in-law walks in.