In a run-down laundromat located in Tokyo's old downtown district, a widowed stepmother lives with her freeter son, three years after losing her husband. The stepmother indulges daily in lewd affairs with a middle-aged employee, but one day, their routine life takes a dramatic turn. A deeply layered drama portraying a unique, sensual atmosphere, delicately depicting the hidden desires lurking beneath ordinary life and the complexities of human relationships.