Couple Soo-ji and Sang-min, who once lived next door, and Soo-yeon who experienced having an affair, spends a moment of confusion due to Soo-ji's sudden death, and now lives a normal life with her husband Dong-seok. Then one day, Dong-seok gets into a parking dispute with Mi-ran, a newly-married couple who moved next door, and Soo-yeon is embarrassed to learn that Mi-ran is the female junior who once had lesbian tendencies towards her in college. Two couples living next door and getting close. Unlike before, Mi-ran has become a lawyer and ignores Soo-yeon. Soo-yeon gets angry. Meanwhile, Soo-yeon found out that Mi-ran's husband, Seok-ho, is a stay at home husband, and Soo-yeon who is in the same situation is attracted to him.
Soo-jin and Jeong-hee are university students who start looking for a high paying part time job during vacation. They end up in a room salon and fall for a high down payment. The owner notices how naive they are and tells them they have to go for second rounds if they want to make big money. Meanwhile, the ace host girl, Yoon-jeong, comes back after a hiatus due to being sick. These girls begin an ego battle for getting the most customers.