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.

Aerim comes to her senses on asphalt and finds a man bleeding to death.

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.

In 1950, amidst the ravages of the Korean War, Sergeant Süleyman stumbles upon a a half-frozen little girl, with no parents and no help in sight and he risks his own life to save her, smuggling her into his army base and out of harm’s way.

Sang-beom's father had always missed his family in the North. Sang-beom was tired of his father. Then, one day after his father passes away, Sang-beom goes to the cold noodle place that his father used to go to.

Woo-ri, 32, and Ja-young, 28, who both dislike being alone but have particular anxieties when it comes to dating, meet through an app.

Min-jae, a rookie police officer with a natural born talent for driving, is assigned to the perfect team: the Hit-and-Run Squad. But at the same time, for police detective Si-yeon, it is a place she is unjustly demoted to for doing her job. The two team up to arrest the rich and powerful speed maniac Jae-chul who is suspected of committing crimes for his obsession for speed.