Do-yeon, a kind and charming woman who leads an unstable life due to obsessive-compulsive disorder and anxiety, discovers a cockroach in her home one day. Feeling her survival threatened because of her OCD, Do-yeon invites a food delivery worker into her home to catch the cockroach, only to become entangled in an unexpected incident. A suffocating psychological battle unfolds as the protagonist suffering from OCD, an obsessive delivery worker, and a suspicious exterminator come together in one place.
The work is a suspense thriller in which the appearance of a single cockroach spirals into a horrific murder case. Extreme choices driven by OCD and unpredictable incidents heighten the intrigue. The webtoon has been praised for drawing readers in from the very beginning, as trivial and unpleasant everyday experiences escalate into an uncontrollable catastrophe.
