Professor Se-jeong is thrust into a bloody nightmare when a rapidly mutating virus is released during a biotech conference causing authorities to seal the facility. Trapped inside with no escape, Se-jeong along with a small group of survivors must fight to stay alive while the infected undergo horrific transformations.
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.
The three women friends struggle to protect a village from the turmoil caused by the sudden appearance of zombies. In the peaceful Heyri Art Village in Paju, three friends: Jin-seon, Hyeon-ah and Ga-yeon, meet at the opening of the Heyri Art Center and, with a beginner Youtuber and a coffee factory CEO, face the zombie crisis.
Eun-soo and Eun-ha, a couple, left of the popular music production company to shout their individuality and form a Milky Way band with Dong-eun. Meanwhile, Dong-eun, who was investing to earn living expenses, even invested the band's money, but failed.The rest of the members, angry at Dong-eun who disappeared, sell the guitar that means a lot to Dong-eun... Dong-eun returns and goes on a journey to find a guitar.