After an accident three years ago, Lin Wan guards their former home alone. Every night at eleven o'clock, she inevitably thinks of the past and of her husband washing cups in the kitchen. The familiar scenes replay constantly in her mind, and the drops of the past emerge repeatedly, leaving her unable to walk out of her longing for a long time. Trapped in memories, she cannot tell what is reality and what is only yearning deep in her heart. An old note uncovers dust-sealed past events; who on earth is trapped inside the memories?