Eiko, who lives in an apartment with her husband, has a daily life filled with constant arguments due to her husband's infidelity. One day, Reika, who moved in next door alone because her husband was on a business trip, comes to greet them. Eiko's husband is captivated by Reika's beauty. However, what captivates him even more is the way Reika looks at Eiko. Eiko becomes entangled in a forbidden lesbian relationship as she succumbs to Reika's seduction. They deepen their involvement while her husband is unaware...
