Tales from the Crypt (1989)

S3E7 Undertaking Palor

A group of four boys with a knack for filming stumble upon some unsettling occurrences at a local funeral home. Trouble arises when one of the boy's fathers falls prey to the undertaker's sinister actions. Determined to expose the truth, the boys start recording the undertaker's malevolent activities, but he soon realizes they are onto him, leading to a terrifying confrontation.