Following her father's murder, a revenge-driven woman puts her trust in a powerful crime boss — and enters the police force under his direction.

With the help of a gutsy female detective, a prosecutor who has lost the ability to feel empathy tackles a murder case amid political corruption.

Do Won and Seo Kyung both lose their fathers on the same night 12 years ago. In the present day, Do Won is a police officer and Seo Kyung a prosecutor. The police discover several skeletons on the train tracks at Mukyeong Station, which has been closed for five years. Do Won heads to the station while chasing a key suspect.

In a mythical land called Arth, the inhabitants of the ancient city of Arthdal and its surrounding regions vie for power as they build a new society.

Kang Dong-Goo dreams of becoming a movie director, but he is cynical due to bad luck. Cheon Joon-Ki wanted to follow in his father's footsteps and become an actor, but he is now just a minor actor. Bong-Doo-Sik came to Seoul to become a scenario writer, but things have not been easy for him. These 3 men run the guest house Waikiki in Itaewon, South Korea. Their guest house is facing bankruptcy and then a mysterious baby and single mother appear at Waikiki.

Explore the relationship of two people as they go from being “just acquaintances” to “a genuine couple” — Yoon Jin Ah, a coffee shop supervisor in her 30s, and Seo Joon Hee, a designer at a video game company who has just returned from working abroad.