“Limit” is a suspenseful thriller about a cop that goes undercover to hunt down the criminal behind a horrific kidnapping case. The police officer who gets involved in the case by taking the place of the kidnapping victim’s parents. As she fights to chase down the criminal, she finds herself caught up in tense, high-stakes mind games with the kidnapper.
An Na is a planner at a start-up company who has trouble with the only developer of the company. She wants to get along with the developer, but he seems to be anti-social. One day, she gets a mission from her CEO to meet "Turtle Egg" who's been messing with the ecosystem of the app they've been working on. And from "Turtle Egg", An Na learns the biggest lesson of her career.
Someone brutally murders Young-hoon’s wife. A hair sample was found on his wife’s body and the detectives use it to trace it back to his friend Joon-sung and locks him up. Seemingly becoming a murder’s wife overnight, Da-yeon asks Young-hoon to testify on his behalf but when he doesn’t show up for the trial, she goes to visit him at his house.
In Sector 7, an underwater oil field located south of Jeju Island, Hae-jun is working as a marine equipment manager on an oil prospecting ship called Eclipse. Joining the crew later is Jeong-man, a former colleague of Hae-jun's father, assigned to Eclipse as captain. Though his job is to oversee the withdrawal of the ship, he suggests conducting some drilling one last time.
Ho-jung is a scriptwriter in a local radio station. She is waiting for her 30th birthday and also eager to be promoted as a DJ of her own program. One day, she hears that Won-jae, her old flame, will be back to town again after 2 years studying in France. With a dream of getting married with him, Ho-jung is getting excited.
