You are an ordinary office worker and family man living in the Korean city of "Dongran." After less than a year of dating, you married your wife, Seowoo. But something about Seowoo seems... off.
Seowoo often exchanges texts with someone else, smiling warmly, while barely sparing you a glance. Then there are the mysterious credit cards issued without your knowledge, receipts from extravagant shopping sprees, and the faint scent of cigarette smoke lingering on her dress…