A man who was a star cyclist is forced to retire after an accident during a race. Due to his pride as a star cyclist, he doesn't work and just hangs around, enjoying his girlfriend's income, but when his girlfriend's savings eventually run out and he becomes anxious, he accepts an invitation from a yakuza who claims to be his fan, and starts gambling, getting into a lot of debt. To repay the debt, the yakuza introduces him to a job where he and his girlfriend perform a black and white show in a tatami room. The black and white show of a former star cyclist becomes popular, and they perform four or five times a day. However, that alone does not reduce his debt, and due to physical strain, the man develops erectile dysfunction. When this happens, the yakuza starts forcing her to perform sex with customers, and she has no choice but to comply, but the man can no longer bear to see himself sinking so low, so he takes her hand and tries to escape from the yakuza...

A fast talking, money stealing, gambling, womanizing low level yakuza bum takes advantage of a bar owner’s virgin daughter. But even after he does the right thing his bad habits don’t change.

2012年のピンク映画50周年を記念し、〈PG〉と〈ぴんくりんく〉の共同企画として、渡辺護監督による新作ピンク映画『色道四十八手　たからぶね』の製作が始動。2013年秋、自主製作・配給という形を決め、撮影に向けての準備が進められていたが、渡辺監督が体調を崩し、惜しくも同年12月24日に逝去された。 渡辺監督の意志を継ぎ、脚本の井川耕一郎氏が監督を務めることで製作が続行され、ピンク映画を支えるスタッフ、キャストが結集し、めでたくこの春に完成を迎えることとなった。 四十八手を題材に、二組の夫婦の絡みあう欲望と愛憎、 その中に人間の本質をユニークなかたちで浮かびあがらせた、クラシックな味わいを持ちつつ新たなピンク映画のスタイルを提唱した意欲作となっている。