Something Wicked This Way Comes (1962)

The show crept into town late one dark October night to the eerie whine of a calliope. In the terrifying days that followed, everything changed... Two boys stumbled onto the first of the secrets - the nightmare merry-go-round that produced the grisly turnabout of human beings. But not until they actually became part of the dance of death did they discover the final mystery of all...