Widow Misa spends her days soothing her burning body through masturbation. Her brother-in-law, Yoshio, secretly watches her and becomes obsessed with her intense aggressive woman play. Misa invites Haruo, her sister Rira's casual sex partner and a cleaner, to dinner, and finally experiences sex again, engulfed in pleasure. One day, lured by Rira's scheme, Yoshio gets drawn into Misa and Haruo's affair, and Misa screams in ecstasy during the intense threesome. A passionate, emotional drama unfolds through their fiery desires.