Gong-cheol tends to his wife Eun-mi, who is unable to walk following a devastating accident. Young-joo, a captivating maid, offers comfort to Gong-cheol as he grows weary from caring for Eun-mi. The two develop a close relationship within the house, which Eun-mi observes. Young-eun notices Eun-mi's sadness and detachment, speaking to her in a way that leaves Eun-mi confused. This triggers fragmented memories in Eun-mi, revealing a disturbing past and the suppressed details surrounding her accident.