The film was made on a budget of just under US$2 million, with all three of the main cast members investing a portion of their salaries into the production.
Lead actor Kwon Sang-woo drew inspiration from his own then-recent marriage, saying, "I think being married enables me to think more deeply about playing melodramatic parts... Kay braves his circumstances for love, and I thought I might have done the same if I were in his shoes."