Jaehoon, a former photographer fired due to unfortunate events, now makes a living as a paparazzo. He is known for his efficient work, mainly capturing scenes of infidelity. One day, he is commissioned by a mysterious woman to observe her twin sister. Upon learning that his client's sister is a doctor running a sex consultation clinic, Jaehoon visits her out of curiosity and seeks consultation. From that day forward, he secretly begins to watch her. As time passes, Jaehoon becomes infatuated with the female doctor and exhibits symptoms of voyeurism. Due to his unexpected behavior, the doctor's sister cancels the case request, but Jaehoon's voyeurism and the doctor's provocations have already gone too far. Meanwhile, Jaehoon discovers that the client and the female doctor are the same person, not twins, and that this was a deliberate act to destroy himself, leading him to harm himself and blind his own eyes. Has Jaehoon's blind voyeurism disappeared? Is Jaehoon really a twisted sex addict? Or is he a man who genuinely loves the female doctor?