Yes, it’s Bat Boy: The Musical, the cult hit based on tabloid stories in the Weekly World News about a child with needle teeth and Spock ears who supposedly was discovered in an Appalachian cave in 1992. In the stage version, the demonic-looking half-breed is taken in by a friendly family that tries to teach him to live in civilized society, only to discover that West Virginia isn’t quite as civilized as they hoped.
The story is filled with salacious shocks that might make even Jerry Springer blush, but it also has a serious, even mythic side. It uses the trashy tropes of the tabloids to make a universal statement about prejudice and acceptance.