On May 9th, a female high school student was brutally murdered. There are 7 suspects and 7 shadows that terrorize them. Who are they and which one of them is you?

Si-hyun who lost all memory after a car accident and has colored hearing in which she can see sounds in colors, tries to complete the melody in her dreams. As the song nears completion, Si-hyun's fragmented memories return to her.

A crown prince emerges as a leader during the war between Korea and Japan in 1592.

A gang boss Nam-hae meets a young Go player Min-su, who rekindles his interest in the game. Despite his outstanding talent, Min-su has been wasting his days as a gambler without pursuing a real career out of it. Nam-hae orders his second in command to persuade Min-su and Min-su becomes Nam-hae’s private Go tutor. In learning Go from Min-su, Nam-hae looks back on his own life. While Min-su discovers the coarse masculine underworld, the meaning of life and true victory through Nam-hae. However, when Nam-hae’s competition starts to expand their territory, Nam-hae is forced into a path to destruction.

An assassin named Tae-goo is offered a chance to switch sides with his rival Bukseong gang, headed by Chairman Doh. Tae-goo rejects the offer that results in the murder of his sister and niece. In revenge, Tae-goo brutally kills Chairman Doh and his men and flees to Jeju Island where he meets Jae-yeon, a terminally ill woman. Though, the henchman of the Bukseong gang, Executive Ma is mercilessly hunting Tae-goo to take revenge.

Inspired by the true story of Kim Kyung-ho, a math professor who was arrested for shooting a crossbow at the presiding judge of his appeal against unfair dismissal.

Hong Gil-dong is an infallible private detective with an exceptional memory and quirky personality. While chasing the only target he failed to find, he gets entangled in a much bigger conspiracy than he bargained for.