Film: Spider Baby or, the Maddest Story Ever Told
is a comedy horror film from the year 1968.
The film centers around the Merrye family, whose members are affected by the Merrye Syndrome, which causes them to regress into crazy and cannibalistic beings. Looking after them is family's chaffeur Bruno (Lon Chaney Jr.).
Problems arise as new legal guardians are given to the family, and their overnight stay turns out to be very troublesome.
Examples in this film: