Park Ah-jeong is stuck in a nine-year relationship rut. Everything feels stale, especially her man. Desperate for a change but unable to fix her partner, she decides the next best thing is a new look, leading her to a chic hair salon.

There, she meets a devastatingly handsome hair stylist. What starts as a simple appointment quickly spirals into an intensely private, highly charged session. With a secluded shampoo room, suggestive touch, and underwear slipping off, Ah-jeong discovers that this hair salon offers much more than just a trim.

The stylist, described as a 'ridiculously handsome madman,' pushes boundaries beyond imagination, demanding incredibly intimate acts. Although Ah-jeong initially refuses and leaves, the sheer novelty and dangerous thrill of the encounter leave a deep impression. She finds herself drawn back to the salon, eager for another taste of this forbidden indulgence.