Wives who immerse themselves in masturbation to distract themselves from loneliness due to marital discord or sexless marriages in middle age. One day, their brother-in-law who lives together or their son-in-law who visits accidentally witness the masturbation scene. The men, who did not overlook the gaps in the hearts of the married women, began to fiercely attack to fill the gaping holes in their hearts and the slippery vaginas!
