Bart Collins is tormented by his piano lessons under the strict and despotic Dr. Terwilliker, who has an unsettling hold on his widowed mother. Bart fantasizes about the Terwilliker Institute, where the sinister doctor rules with an iron fist, having built a massive piano that requires 500 children to play it.

The 5,000 Fingers of Dr. T.
A young boy embarks on a thrilling quest to liberate a group of talented pianists from the clutches of a ruthless instructor who has mentally enslaved his mother.