An Unknown Woman Sent Me a Photo

Every night, I receive provocative photos from an unknown woman. I’ve become addicted to them, and I’m growing increasingly obsessed with uncovering the identity of this mysterious woman. As reality and fantasy begin to blur, I start to suspect that Yoon Sejin, my superior at work, might be the woman in the photos. If my suspicions turn out to be true, my everyday life will completely fall apart…