Keti Harmon - obychnaya devyatiletnyaya devochka, kotoraya lyubit mul'tiki i detskie knizhki, i tol'ko ee mat' Sara znaet, chto v zhilah u nih obeih techet durnaya krov' zhestokoy ubiycy. Etu taynu Sara hranit vsyu zhizn', skryvayas' ot tekh, kto ishchet sledy ee biologicheskoy materi. No kogda na glazah u Keti tragicheski pogibaet ee nyanya Anna, nasmert' razbivshis' o skaly, v dushe Sary ozhivayut prezhnie strahi. Byl li eto neschastnyy sluchay, ili Keti prichastna k smerti Anny? Sumeyut li oni s docher'yu i dal'she pryatat'sya ot zhadnyh do sensaciy zhurnalistov, ili Saru zhdet strashnoe razoblachenie? I glavnyy vopros: ubiycami stanovyatsya ili vse-taki rozhdayutsya?