Once the shining star of the silver screen, award-winning actress Su-yeon crashes and burns after a notorious DUI incident. Attempting a dazzling comeback through a heartfelt essay, she finds the world's reception icy. Battling depression, Su-yeon engages in a heated argument with Ga-yeong, with whom she lives, and resorts to binge drinking to relieve stress. In a drunken stupor, Su-yeon wakes up to discover Ga-yeong stabbed to death with a knife. With no recollection of the situation, Su-yeon receives a letter asking, "Do you deserve to be an actress?" Determined to cover up everything, she embarks on an adventurous journey risking her life, realizing that someone is watching her.
Shortly after the man and his wife were newly married, the distant cousin came to live at home temporarily. With this cousin's involvement, the couple's sexual life had problems. The Neuroticism cousin often broke into the room when the man and his wife were having sex, which made them lose their interest. The coquettish cousin, in addition to satisfying herself with a masturbator, often seduced the man to have sex with him. The man could not stand this life, so he found his single friends, My friend was incredibly robust, which satisfied my cousin very much. They also established a sexual relationship. Who knows, a few days later, my friend was exhausted, while my cousin was still lively and seemed to have drained the male lead's friend The coquettish cousin squeezed the man dry
Eunjung and Qri star as a pair of delinquent thieves who wind up in a huge mess when the bag they lifted from a club turns out to have been stuffed with drugs. A flashback sequence reveals that Qri originally was Jiyeon, but after a run-in with a couple of gangsters, they mauled her face and she ends up with plastic surgery leaving her looking like Qri, and unrecognizable to the man played by Cha Seung Won, whom she once loved.
After his parents are murdered, Bin is taken into the care of relatives. He begins to act strangely, the new occupants of his house experience horrific nightmares, and a mystery unfolds as a terrible secret is revealed.
A popular high school student, who is the top student of her class, mysteriously dies. Six of her friends who graduated from the same elementary school attempt to track down the reasons for her death. While the six friends try to find the truth behind her death, they struggle with teenage hardships and academic pressures.
A class of students stays at school for a camp in an elite study group to finesse theirs and the school's grades. Upon the first night, the swimming coach is found murdered. As the students try to figure out what happens, a voice informs them that if they don't figure the murder out, students will begin dying in quick succession.