Pink film distributed by Xces.

Yoshio Mamiya was angry because of false rumors. It is said that he passed on a vicious disease to his girlfriend, Shinji, and they broke up. Shinji, who agreed to break up with his son-in-law, was also bothered by the rumors. Yoshio finally discovers that the source of the rumors is a gay bar called "Angel" and boards the bar alone. At the bar, hot-eyed Hida, the beautiful Tajima, and the mysterious Serizawa are drinking...Yoshio first approaches Tajima, but when Tajima realizes that he is the rumored Yoshio, he invites him to a hotel. Yoshio is forced to have maniacal sex with one man after another, and when he finally gets close to the truth of the rumors, Yoshio is made to realize his true desires...

The story of two men, one middle aged one mid twenties, who make friends and exchange cigarettes and stories of their sex lives, unaware they have unwittingly exchanged partners. The story, told in flashbacks, as the two men travel through the night on a motorcycle, is loaded with highly charged eroticism. Sex and violence are juxtaposed against the drabness of the men's everyday lives, effectively blurring the line between what is real and what is fantasy. Founded on the well-known myth of furtive sexual gropers on the rush-hour Tokyo commuter trains, Tandem is a low-key masterpiece of Japanese Pink Cinema.