In this intense exploration of forbidden desire within a family home,
we meet Yuka Mizuno and her son Kosuke. After her husband tragically passed away in a car accident,
Yuka has raised Kosuke alone. He is an aspiring writer who seems to be channeling his overwhelming affection for his mother into his manuscript—a love that transcends typical maternal bonds. Both mother and son harbor deep secrets; Yuka finds herself drawn to Kosuke because he increasingly resembles her late husband,
while Kosuke struggles to contain his burgeoning attraction to Yuka. They engage in frequent solo sessions while thinking of each other, deliberately leaving their doors ajar just to risk being discovered by the other.