A taboo ritual where maternal love intertwines with sexual desire. To cure her only son Daisuke's illness, Ritsuko awakens to an unusual method. This ritual evolves into lewd acts that stimulate twisted affection and dark lust, going far beyond mere treatment. Daisuke is drawn into this whirlpool, and the bond between mother and son descends into forbidden territory. Within a secluded, secretive space, an abnormal relationship unfolds where love and carnal impulses collide.