A successful businesswoman Kanami Yachiyo moves in to a high-class apartment complex.
When she goes to greet her new neighbors, she encounters a beautiful redhead wife named Shiori Amano.
However, the wife has bags under her eyes... is she perhaps tired?
That's when Shiori's husband appears and rudely disregards Kanami as an upstart / parvenu.
In the face of such abrupt rudeness, Kanami is struck speechless.
While lost for words, Shiori fearfully apologizes on behalf of her husband.
That night, Kanami hears the screams of a woman from beyond the wall of her room.
The sound of slamming against the wall too...
Kanami visits Shiori's apartment once more the next day...
However, Shiori's gaze wanders, her breathing is rapid, it would seem she has strangulation bruises, and what seems to be wrist-cut scars...
Sensing that this is by no means a trivial matter, Kanami invites Shiori to her room... and devises a plan to save Shiori using the Granville-style massage technique, but...