25 years ago, Mi-Hee was an ordinary housewife, married to Chul-Joong with a son. Suddenly, her husband died and her son went missing. This all took place at their house. Mi-Hee was imprisoned for 25 years. She is released from prison and goes back to the home where everything took place.

When his abducted brother returns seemingly a different man with no memory of the past 19 days, Jin-seok chases after the truth behind the kidnapping.