Beware! Children at Play (1989 Horror Film)

From Troma's website: "Childhood used to be about jumping rope and playing hopscotch…but in one little backwoods town it’s now about slitting throats and eating flesh! While visiting Tromaville, the DeWolfe family discover a terrifying secret. God-fearing parents panic as their children mysteriously disappear. Little do they know that only thing worse than their children disappearing would be them coming back! Lured into a cannibalistic cult, doe-eyed innocents are transformed into mindless killing machines. Parents and children face off in the most stomach-churning finale of mutilated flesh to bloody the screen!"