Daleko v gorakh, v samoy glushi stoit odinokiy nepristupnyy zamok. Odnazhdy khozyain zamka reshaet priglasit' k sebe gostey, chtoby vmeste otprazdnovat' svoy den' rozhdeniya. Snachala vse idet po planu. No noch'yu proiskhodit nechto strannoe i, na pervyy vzglyad, sovsem neob"yasnimoe Vozmozhno, nikto tak nikogda by i ne uznal vsyu pravdu, esli by sredi gostey v zamke ne okazalas' odna chrezvychayno lyubopytnaya osoba. Tol'ko blagodarya ee logike i nakhodchivosti, byla raskryta strashnaya tayna.