Yuri, a strong-willed, rough-and-tumble, and bold mother, has been sexless for some time with her timid husband, who is often away on business. She's constantly at odds with her rebellious son, but one night, she teases him by showing him her breasts, and he becomes obsessed with her. The son begins to masturbate to his mother, Yuri, and finally, unable to resist, he comes into Yuri's bedroom and forcefully takes off her pajamas! And...