Nola and Erza are sisters hiding a dark and disturbing obsession beneath their quiet lives. Driven by control and dominance, they abduct an innocent young woman named Lana and force her to live under their strict rules.
Confined inside the house, Lana is stripped of freedom and treated as an object rather than a person. Moments of release are granted only when she is ordered to perform certain tasks, before being restrained once again.
Two psychopathic sisters, Nola and Erza, clash after one of their captives dies once again. Nola, the younger and more manipulative yet seemingly gentle one, scolds Erza for her excessive cruelty. Erza promises to be more patient with the next victim. As the tension subsides, they stroll through a park and spot Lana, a gloomy girl sitting alone. Without a word, they silently agree: Lana will be their next target.
Lana finds herself inside the room of two psychopathic sisters, Nola and Erza. There, she shares her life story with her mother, hoping to return home soon. But when the time comes, her hopes vanish. Instead of letting her go, Nola and Erza imprison her, turning her into their new plaything in their twisted obsession.
Lana's first night in the room becomes a nightmare. Forced to sleep between Nola and Erza with her eyes covered and mouth sealed, she is stripped of all freedom. By morning, her torment deepens as Nola and Erza compel her to recite a twisted prayer, a false confession that she is happy living with them. Only after repeating it over and over is Lana finally given food, like a captive forced to obey the cruel rules of her keepers.