Dong-cheol,

a seemingly ordinary man, harbors a hidden past as a formidable fighter.

When his wife, Ji-su, is kidnapped by a ruthless criminal organization, he is forced to confront his violent past.

Driven by a desire to protect his loved ones, Dong-cheol unleashes his inner warrior, taking on a group of dangerous criminals.

As he delves deeper into the criminal underworld, he uncovers a sinister network of human trafficking and exploitation. With the help of his loyal friend, Choon-sik, and a retired police inspector, Dong-cheol fights to dismantle the organization and rescue the innocent victims.

Through a series of thrilling action sequences and suspenseful plot twists, “A Hard Day” explores themes of redemption, justice, and the lengths a man will go to protect his loved ones.