Trog on AllMovie

An anthropologist (Joan Crawford in her final screen performance) discovers a hirsute cave-dwelling creature with a man's body and a monkey's head whom she believes is the missing-link. Naming it Trog, after troglodyte, she tries to break into its memory so that she might learn ancient history (his flashbacks are comprises of clips from Irwin Allen's 1955 film The Animal World). An angry land developer is nearly responsible for the creature's demise after he releases Trog. The misunderstood creature, who goes insane when he hears rock music, kills someone, attacks bystanders and then heads off with a little girl in town.