繁华闹市，妖艳女子田代惠美（伊藤步 饰）坠楼身亡，身后留下一名年仅六岁的儿子新儿（高桥来 饰）。惠美的妹妹夏美（尾野真千子 饰）闻讯赶来，偶遇自称新儿父亲的男子铃木元（堺雅人 饰）。铃木的举止引起神奈川搜查一课警部补黑岩忠嗣（高桥克实 饰）的怀疑，他调查对方此前所在单位港东大学生命科学研究所，从校长神原（伊武雅刀 饰）的言词中发现，这些相关者对新儿似乎有着非同寻常的热忱。原来作为一位天才的生殖遗传领域的学者，铃木一心攀上医学研究的最高峰，而抵达神之乐园的途中，不可避免要打开那个违背人伦道德、甚至招致毁灭的潘多拉盒子。 可悲的是，任何人得到这个机会，都无法抵挡欲望的诱惑，开启关于自己和他人的悲剧大门……

Ordinary salaryman Hamasaki Mitsuo works for a company which installs vending machines. He complains about his marriage life while at the dentist office. Mitsuo isn't happy at all with his marriage with his wife, Hoshino Yuka, who has the complete opposite personality from him. He doesn't know if he loves Yuka or not. At this time, Mitsuo meets Kono Akari, his ex-girlfriend from his university days, who is now married to Uehara Ryo.