Japan in the early 1980s. An employee of a trading firm returns home early and catches his wife with a lover. From grief, he goes to a bar, where he meets a seller of sex audio recordings. Suddenly the man realizes that erotic goods, magazines in particular, sell quite well, and, having become adept at selling English encyclopedias, decides to change his field. Thus begins the path into the sex industry for the future famous porn director Tooru Muranishi.