Dolls are perceived as harmless, and they can be gorgeous and/or adorable, but there's still something scary about dolls. It's probably because many of them fit squarely in Uncanny Valley territory. The blank gaze and unmoving stare reminds us too viscerally of corpses, perhaps. This goes even more when the doll is damaged in some way, such as missing limbs or eyes, or having holes in its head.