The House on Skull Mountain

The name of this movie is The House on Skull Mountain released in 1974-10-04 and it's main theme is Four cousins who have never met are invited by their Great-Grandmother Christophe to visit her mansion outside of Atlanta. When they arrive, they learn she has just died. They stay to hear the reading of her will and soon are being killed off one-by-one with voodoo magic. The survivors try to find the killer before he finishes them all off..