A dark consequences are led to by An individual's affair with the House Maid of his family. Eun-yi is hired as an aupair for Hae-ra (blessed with twins) and her husband Hoon. The chief task of eun-yi is watching Nami, the couple's young daughter. Eun-yi is excited to connect. Hoon starts to flirt with Eun-yi, enticing her with glasses of wine and his piano playing, and so they finally begin a sexual relationship. Despite the affair, Eun-yi is friendly and still warm Hae-ra, to Hoon wife. She expresses enthusiasm and pleasure at Hae-ra's pregnancy's development.