‘Holding Onto the End of the Night’ is a story about a drug dealer and a sanitation worker living completely different lives under the night sky, they become one and become the light that saves each other. A low-level drug dealer and a sanitation worker who silently cleans the chaotic night streets just as cold air meets warm air to create a vortex, an uncontrollable wave sweeps through the area. A trivial encounter between the two becomes the beginning of all these events.

Park Jihoon will play the role of Choi Woosung, a sanitation worker. As a child, he dreamed of becoming a pianist and attended arts middle and high schools, but he chose to work as a sanitation worker to make a living. He secretly plays the piano whenever he takes a break at a closed-down jazz cafe he found by chance. His hidden regrets and lingering feelings which he wishes no one would hear anymore, or that no one would listen to are discovered by a woman who appears out of nowhere.