Chauffeur Bruno looks after three siblings at their family estate. They all suffer from a genetic disorder that causes a reversal in mental age and results in a crazed, childlike disposition. Bruno covers up their behavior and crimes, but when relatives arrive at the estate, the truth may come out.

Before The Texas Chain Saw Massacre there was Spider Baby. At once a camp tribute to the best of Universal horror and a macabre look at familial dysfunction, Jack Hill’s utterly unhinged debut feature is a cult masterpiece of cannibal siblings and bug obsessions starring horror icon Lon Chaney Jr.!