Si-Kyung, the youngest reporter, infiltrates an unnamed religious group. Invited to a special ceremony, she witnesses strange things happening in the prayer house. Five sacrifices and five stories offered by the church members. When the story is over, she too must make a sacrifice.

Yoon-young, a 19-year-old girl who dreams of becoming a civil servant, is framed as a murderer and imprisoned in a women's prison.

A woman who has shut out the light of her emotions, Doah. Amid a bitter divorce and custody battle, she locks every feeling into darkness using the "Gray Rock" strategy. As a school counselor, she heals students’ wounds while hardening her own pain into cold stone, concealing cracks in her identity between a demanding mother and an emotionally numb workplace. Everything holds—until a single outburst during a visit with her daughter fractures her armored shell.