Jun-ho brings up his ex Yeon-joo to Dong-seok, the guest. He fell in love with her at first sight, who looked like his ex Su-jeong, and suddenly disappeared. A few days later, the police came and said Yeon-ju died in front of the bar, adding that they interrogated him. Dong-seok confides to Jun-ho that Yeon-ju is actually his girlfriend, and today is the 49th day since she died. Eun-young asks Jun-ho about most memorable moment. Junho realizes that Yeon-ju was actually a fantasy and Eun-young was a real-life Yeon-ju.
According to Korean folk tradition, the 21-day period after childbirth is known as “seire.” During this time, a newborn is vulnerable to bad luck, curses, and even evil spirits. Many superstitions surround these first three weeks, and new mother Hae-mi carefully follows every one of them. Her husband, Woo-jin, reluctantly plays along, but when he attends an ex-girlfriend’s funeral, he unwittingly opens the door to dark supernatural dangers.