14 votes
A 12-year-old orphan who has just inherited a fortune is trapped on an island with his uncle, a former British intelligence commander who intends to kill him. A young girl is the boy's only ally against the sarcastic uncle, who uses hypnotism, a pool of sharks, fire, and poisonous mushrooms as weapons.

Status: Released
Released Date: 1966-11-18
Runtime: 92 mins
Director: William Castle
Spoken language: English
Genres: Thriller, Horror
Original title: Let's Kill Uncle
Production Companies: William Castle Productions
Production Countries: United Kingdom, United States of America