Massage WAGON is launched! We get four sexy country wives from the Kanto area! The wives are picked up and suspicious, but the pleasure of the massage and the heatstroke of the closed space make their crotches wet! A frustrated wife awakens to her lust in a risqué esthetic salon in a closed mobile massage car! Will the wife's erotic switch be turned on by the lewd treatment of the unscrupulous masseuse and she end up having sex with him? The creaking suspension of the WAGON parked on a country road and the obscene moans echoing inside the car...