电影《她的危险性游戏》讲述了现年42岁的坂口健太郎的故事。健太郎娶了比自己小一圈的公司“女神”作为妻子。然而，他对与年幼的妻子之间的夜晚生活感到不满，于是开始与肉食系的女同事紺野涼子发展不正当关系。涼子正值风华正茂的时期。最初两人每隔两周会约会一次，但现在涼子天天追求他。尽管在肉体和金钱上都感觉有些吃紧，但激烈的欲望之交让他们继续着这种关系

妻子“女神”对健太郎的出轨毫不知情，但最近她感到夜晚被忽略，开始自怨自艾，认为自己是否没有吸引力。为了重新振作，她开始努力学习瑜伽课程，希望能再次与健太郎激情相爱。在瑜伽教室，她遇到了同班学生的玛丽子，后者教授了她夜晚的技巧。当晚，她们实践了这些技巧，发现前所未有的快乐将她们包围，两人燃起了激情。健太郎对这种体验赞不绝口，称之为“像专业人士一样”。

The movie "Her Dangerous Sex Game" tells the story of 42-year-old Kentaro Sakaguchi. Kentaro married a company "Goddess" who was a circle smaller than himself as his wife. However, dissatisfied with the night life with his young wife, he began to develop an improper relationship with his female colleague Konno Ryoko in the meat department. Liangzi is in the prime of life. At first the two dated every two weeks, but now Ryoko pursues him every day. Despite feeling a bit tight physically and financially, a passionate friendship keeps them in the relationship

The wife "Goddess" has no knowledge of Kentaro's cheating, but recently she feels neglected at night, and starts to blame herself, wondering if she didn't attraction. In order to regain her strength, she began to study yoga classes hard, hoping to fall in love with Kentaro again. In a yoga class, she meets Mariko, a classmate who teaches her the technique for the night. That night, as they practiced these techniques, they found joy surrounding them like never before, and the two sparked a passion. Kentaro raved about the experience, calling it "like a pro."