Oliviero is a burned-out writer, living at his estate near Venice, his dead mother dominating his imagination. He is also a degenerate: sleeps with his maid and his ex-student, hosts Bacchanalia for local hippies, and humiliates his wife Irina in front of strangers. She lives in terror. When a young woman is murdered, police suspect Oliviero. Things get complicated when his young, beautiful, and self-confident niece, Floriana, pays an unexpected visit. A silver-haired stranger observes. More women die, and thoughts of harming Irina give Oliviero new inspiration. What's Floriana's game and who's the observant stranger? Watching all is a black cat named Satan.
继母在丈夫不知情的情况下与继子拓也发生了身体关系,在拓也读书时拜访他,并开始窃窃私语并引诱他。拓也被继母的淫荡气息打得浑身发抖,放下笔,与继母依偎在床上。在与继母发生了几次关系后,无法控制自己的欲望,拓也越来越沉迷于与继母的关系,最终他因无法抗拒深夜的欲望而吵醒了熟睡的继母。与此同时,她对拓哉的到来感到暗暗高兴,并在熟睡的丈夫身边享受着与拓哉的令人眼花缭乱的性爱
即将结婚的美月和男友和也是一对幸福的情侣,但美月有着强烈的性欲,并且因为对与男友的性生活不满意而感到痛苦。一直梦想出国留学的和也邀请在当地欠他恩情的黑人朋友迈克尔到他家,三人开始同居。瑞希偷偷看到迈克尔在浴室洗澡后,继续关心他。
康纳是一位有抱负的作家。她的丈夫是一名编辑,工作时间根据作家的日程安排而变化,非常忙碌。栗原是一位陷入低谷的成人小说作家,饱受缺乏灵感的困扰。秘书见他这个样子,就灵机一动。那就是把当护士的神无叫来当帮手