An elderly matriarch keeps a homemade bar of lie soap that, when used to wash the mouth of anyone caught fibbing, compels truthful speech thereafter. The narrator recalls childhood episodes in which boastful visitors and family members are exposed and chastened by this remedy, and how the ritual shapes community behavior. As more people are subjected to the soap, social pretenses, exaggerations, and deceptions unravel, producing comic and unsettling consequences for relationships, authority, and belief. The tale balances satirical humor with a speculative twist on honesty's moral and practical effects.