Love lives according to the same laws as microbiological cultures. Love goes through the same phases: the calm of the initial phase - the jump of the exponential - and the smooth rise of the linear. Sergei Gavriilych, the head of the laboratory of mixed cultures, is convinced of this, and he is never wrong. And yet, love covers him desperately and suddenly, so that it is impossible to trace when it all started, when everything turned out this way... Between him and his subordinate, by intern Dasha, who loves science and beer, a spark slips, ignites into fire - and the flames freeze into threads of gifs. This is a story woven from absurdity, laboratory romance and sincere, eternal love.