A film about a young widow who begins an affair with her son-in-law, vividly depicting the wavering love and desires of a young widow. Maya, a widow in her twenties, lives with her husband's son, Shuhei. With two people close in age living under the same roof, it was inevitable that something would happen...

As Morimi Shizuka leisurely sips a hot drink at the front door, a masked office worker on his way to work coughs visibly as he passes by. Shizuka, a practicing doctor, lives with her father Shigeru (Iijima), a research doctor working at a university hospital, and her younger sister Mai, but there is no word on the whereabouts of the sisters' mother. Shigeru has been feeling unwell since the night before, and as she takes a morning bath, Mai blares out loud music with no thought for her father, leaving Shizuka speechless. Mai unilaterally tells her sister that she is bringing her boyfriend home that day, and although Shizuka is concerned about Shigeru, she goes to work. Morimi Clinic is run by Shizuka and nurse Hase Shu (Salmon). However, Shizuka does not at all betray the impression of being laid-back, and in fact, her mood accelerates.

Nana, a graduate of a nursing school in the countryside, began working at a private hospital in Tokyo. The hospital director, Kazuto, is a handsome man with a wealthy family, but he's a mama's boy and has a penchant for younger girls, making him still single. The two are drawn to each other and begin dating. However, when the senior head nurse, Ayano, finds out, she begins a relentless harassment campaign…