Accidentally overheard recording on a cassette... and brothers Dima and Alyosha begin a new investigation. A collection of ancient weapons was stolen from a famous artist. There are too many suspects: the cool neighbor of the Vadik brothers - Gadik, a visiting swindler - a Frenchman, an alcoholic Frolyakin, the director of a toy store Karabas... Which one of them is the kidnapper? In order to make the right choice, the guys are ready to do anything. Even use your grandmother’s old drill...