S1 • E1
On a rainy day, Lee Min Kyung and Noh Hwi Oh experience a series of increasingly unpleasant encounters, unaware they live next door to each other.
S1 • E2
At the police station, Min Kyung and Hwi Oh go at each other's throats. Later, Hwi Oh is advised to stay away from people who trigger his anger.
S1 • E3
Bumping into an old coworker dredges up painful memories for Min Kyung. With a flasher on the loose, Hwi Oh is roped into patrolling the neighborhood.
S1 • E4
Min-kyung is determined to find her missing dog. Getting wind of drug dealing activity on a chatting app, Hwi-oh sets out on an undercover mission.
S1 • E5
The flasher resurfaces, this time in front of Min-kyung, but thankfully Hwi-oh is close by. The next day, she asks him for a favor.
S1 • E6
Hwi-oh trains Min-kyung in the basics of self-defense. But soon, Min-kyung's anxiety returns in full force with the arrival of a sudden piece of mail.
S1 • E7
A sudden incident in the night scares Min-kyung, who feels vulnerable living alone. Hwi-oh's mother discovers a woman in her son's apartment.
S1 • E8
Min-kyung exchanges harsh words with her mother. She's further shaken by the identity of a prospective tenant who comes by to see her apartment.
S1 • E9
Malicious rumors about Min-kyung spread online. While other neighbors turn against her, Hwi-oh promises she can always count on him to take her side.
S1 • E10
As a show of repentance, the Women's Association sets out to help Min-kyung. After a night of drinking, Min-kyung tells Hwi-oh she wishes to see him.
S1 • E11
After receiving good news at the psychiatrist's office, Hwi-oh heads to the police station. At the apartment, Min-kyung panics when her dog gets loose.
S1 • E12
Hwi-oh's fury takes over when Min-kyung's ex-boyfriend shows up at the apartment. Lee Su-hyeon finds out that a video of her singing has gone viral.
S1 • E13
Resolving to protect Hwi-oh, Min-kyung meets the one person she wanted to avoid. Concerned for her safety, Hwi-oh chases after her.
Sun Young
Han Jin Young
Lee Sang-yeob
Noh Hwi Oh's mother
Seon Ho
Ju Ri
Noh Hwi Oh's father
Detective
Seon Ho's wife
Detective