In 1925 Korea, Japanese rulers demand the last remaining tiger be killed. The tiger easily defeats his pursuers until a legendary hunter takes him on.

In the dead of night, a body donated for organ transplants mysteriously disintegrates into ashes. Soon after, five recipients, given a heart, corneas, lungs, liver, and kidneys, begin to develop supernatural powers. A teenage girl gains immense strength, a hipster manipulates electromagnetic waves, a novelist summons powerful gusts, a factory manager can heal others, and a woman discovers a strange, still-unidentified ability. Together, they form a reluctant but heroic team known as "HI-FIVE." But they aren't the only ones transformed. A cult leader who received the donor’s pancreas gains the terrifying power to drain life energy and sets his sights on stealing the abilities of HI-FIVE to achieve godlike domination.

Ancient Korea, 1506. The tyrannical King Yeonsan-gun of Joseon is overthrown by his half-brother Jung-jong, whose reign begins with a blood bath. Over the years, traitors plot against him, sinking the kingdom into chaos. In 1528, frightened rumors come to royal palace, regarding a mysterious creature, known as Monstrum by the peasants.

Hoo-jung’s wife goes to New Zealand while he continues working at home as a teacher. However, he soon receives the tragic news that she has passed away. Intriguingly, his wife sent him a movie script before her passing which will lead Hoo-jung into some unexpected events.

In-gyu has intellectual disability. His mother, Ae-soon, takes care of him, nagging him all the time. One day, she is diagnosed with terminal cancer and prepares for her son's independence.

A woman gets kidnapped in the middle of the day and is tortured in a psychiatric hospital. A Journalist gets on the trace of the case and tries to find out the truth.

Chang-seok's marriage failed and he is about to publish a novel based on his own experience. After he meets various people, Chang-seok changes his mind and starts weaving yet another story.

A breakthrough opportunity comes when internationally - renowned director Park announces an open call for his new film, and Jang begins intense preparation for the role of his life.

When his mother goes missing, Lee Ho-yeon sets out to search for her. In the course of that journey, he discovers his parents' pasts during the democracy protests of the 1980s when student activists rose up against the repressive Chun Doo-hwan regime. Reading a book written by his mother, Ho-yeon uncovers a story of hope, love and betrayal, and struggles to understand painful secrets that have been hidden away for thirty years.