Glavnyy geroy – Vitya Magikov – zadumavshis" nad proiskhozhdeniem svoey familii, provyel opyt, kotoryy otkryl dver" v inoy mir: mir magii i volshebstva. Proshloe, nastoyashchee i budushchee spleteny v odno tseloe – dva shkol"nykh druga tsepochkoy vzaimosvyazannykh sobytiy popadayut v neobychnye situatsii, kotorye postoronnemu cheloveku mogut pokazat"sya plodom bol"noy fantazii: siloy voli Vitya ozhivil plastilinovykh chelovechkov – plastomov – kotorye stali ego pervymi pomoshchnikami v tyazhyelykh ispytaniyakh; siloy voli Vitya zastavlyaet uchitelya geografii razgovarivat" zadom-naperyed; siloy voli on dayet sdachi svoemu obidchiku v tsirke… A odnazhdy shkol"nye druz"ya popali v mir, kotorym pravit tyemnyy angel Lyutsifer. Priklyuchenie bylo opasnym, no etot put" neobkhodimo bylo proyti, chtoby snyat" koldovstvo, pod kotorym nakhodilsya otets Viti, mnogie gody prozhivshiy v tele kota ryadom s synom. Vitya ne znal ob etom, i kotu inogda krepko dostavalos". Prichinoy puteshestviya v mir Lyutsifera stali «sobach"i vorota» - dva stolba, stoyavshikh bukvoy L, pod kotorymi proshyel yunyy mag…