While the father is away, the mother and son gradually grow closer. Their feelings deepen day by day, until one day, they can no longer hold back. Then the mother says, "Hey, let me wash your body in the bath..." That single sentence ignites their suppressed desires. Breaking all reason, the two engage in a forbidden relationship right there in the bathroom. Craving each other's bodies, they lustfully entwine. Captured entirely through hidden camera, this intense moment is exposed.