Tales from the Darkside Season 3 Episode 3
A boy treated poorly by his parents gets the upper hand when an eccentric uncle shows up and tries to convince the parents to finance him to develop his newest invention – a pill that increases brain power and memory. He has a stroke and dies but not before the boy swallows the one and only prototype, and soon puts his parents into the same position he was before.
Serie: Tales from the Darkside
Episode Title: The Bitterest Pill
Air Date: 1986-10-12