While practicing after hours in her high school, an aspiring singer is mysteriously killed and her body vanishes. Her invisible ghost is trapped in the school, but her best friend is able to hear her voice.

Min-sang, a meticulous planner and tidy single man, is frustrated daily by his tenant, Jin-young, a veterinarian who turns his newly mortgaged building into a mess. During another quarrelsome day with Jin-young, Min-sang encounters an elderly lady at the animal hospital, who turns out to be the world-renowned architect Min-seo. Desperate for Min-seo's approval for an ongoing project, Min-sang starts to persuade Jin-young and her cared-for puppy to impress Min-seo. Meanwhile, Hyun, the leader of a small band, is left bewildered while looking after his absent girlfriend's dog, especially when her ex-boyfriend Daniel shows up unexpectedly, demanding to see the dog, claiming he used to raise it together and insisting on visiting the dog once a month.

Moon-jung is a caregiver who has a son in middle school. After getting divorced, she can't bear to bring him to her house, a plastic greenhouse she has converted into a home. She strives to raise the necessary funds to move into a real home for her and her son.

A woman moves into an apartment house with her daughter. But her daughter begins to be haunted by a mysterious ghost on a hidden floor.

Shin-ah, a free spirit, has an unexpected encounter with Dong-gi, who seeks excitement. After a passionate night, she breaks up with her boyfriend and reunites with Dong-gi when he calls. The two fall madly in love.

The life of a happy family is thrown into turmoil when they are given 30 days to pay back a relative's massive debt or lose everything.

Jun-oh, an insurance claims agent, faces off with a client who he suspects of committing murders with the intention of collecting insurance premiums.

Set in the 1960's. Joo-goo is viewed as Korea's best sculptor, but he suffers from a disease which will slowly paralyze his body. He gives up interests in the arts and just spends his days meaninglessly. His wife, Jung-sook, tries to find a nude model for him, hoping the model might inspire him to sculpt again. One day, Jung-sook meets Min-gyung.

When an illicit arms deal goes bad, North Korean spy Pyo Jong-seong finds himself targeted not just by the South Koreans but also his own bosses.

After a tragic road accident, broadcast journalist Jin-soo finds he's lost pockets of his memories, including that of a woman he once loved. Nagged by unrelenting feelings of loss, Jin sets out to find her. His quest lands him face to face with Yeon-hee, a woman who's trying to forget a man she once loved. What begins as a journey of sadness turns into a triumphant story of love for the pair.