Iroha lives in an old apartment with her husband, leading a quiet and peaceful life. Her husband is usually kind and dependable, but he has a bad drinking habit and his demeanor changes drastically when he starts drinking in the evening. One night, loud noises come from the neighboring unit. The neighbor is a young construction worker who often invites his rowdy senior coworkers over, especially before holidays, causing constant disturbances. Her husband, fed up with the noise, confronts them in anger—only for Iroha to become the target of the young men's resentment. From that point on, the men begin summoning Iroha every night, tormenting her with relentless harassment. As the nightly abuse escalates into violent rape, Iroha struggles to cope with the crumbling relationship with her husband and the ongoing torment from her neighbors. The story follows her descent into humiliation and violation at the hands of the noisy neighbor.