Ordinary Kyiv schoolchildren, Zhenya Kysil and Vitaliy Doroshenko, take on a new business. And how could it be otherwise when not only food but also people disappear in the cellar of their grandmother Sekleta. So, the boys set off in search of the housekeeper hiding underground. They are not deterred by the spooky adventures in the cemetery, the elusive Madame Discount, or the formidable deaf and dumb seller of fate. The daredevils brilliantly solve all the mysteries and even save the bus passengers from a real explosion