Based on a web-toon of the same name, depicting a story about Choi Moo Gak, a man lost his younger sister in the "Bar Code" murder case three years ago. Since then he has lost his senses. Meanwhile, Oh Cho Rim miraculously survived the same incident. Since then, she has lost her memory, but also has gained the ability to see smells.
Overview of the movie
Sensory Couple Key