麻夕夫妻倆和患有失智症的公公同住，某日，住在對面的生島撿回了麻夕所丟棄的電風扇，為麻夕深深著迷的生島從此開始了窺視麻夕私生活的日子……。

Mayu (Shunka Ayami) lives with her husband, an office worker, and her father-in-law, who has dementia. Ikushima (single), who lives in the apartment across the street, can't get up and is living a day-to-day life. One day, Ikushima finds a beautiful married woman (Mayu) who throws an old fan in the trash. He took the fan back to his room, repaired it, and started using it. After that, he gradually begins to peek into the life of Mayu, who lives across the street. One day, he secretly follows her when she goes out, and arrives at a suspicious sex shop...

『覗かれる人妻 シュレーディンガーの女』向かいに暮らす美しい人妻の存在を知り、惹かれ、彼女の生活を覗き見るようになった独身男