One day, poor siblings Lucy and her Antonia discover a doll head, and Antonia claims it as her newest toy, naming it Hush-a-Bye. Lucy has to wonder when she hears Antonia speaking to the doll head one night, and seems to hear something speaking back to her, and then strange, bad things begin happening to people who make fun of Antonia for being poor. Lucy then asks Hush-a-Bye to protect her as well, but soon the doll's malicious power threatens to split even these siblings.
