Mother Sun (Sun Woo-Sun) enjoys her days with her 12 cats. One day, she tells her cats "Let's all go on a trip together." This is how their first trip begins.
Bomi is 12 years old. She wants her own room so badly. Her sister, Eonju, whom she shares the room with keeps sneaking a look at her diary. She studied really hard to get first place as her mom promised to get her own room if she did but her mom keeps denying the promise. So Bomi decides to marry her sister off! She finds out that the manager of a construction company like her sister and does her best to help him. The manager ends up winning her heart and proposes to Eonju. But she refuses his proposal. Bomi gets curious and tries to find out why she doesn't want to get married.
Five people are invited to a remote doll museum and one by one they are mysteriously killed. The survivors find out the truth: dolls have spirits, and they have come to settle scores.
