Macumba love (1960, brazil/usa, dir douglas fowley)

J peter wells, an expose writer, arrives on an island off the coast of south america (no country identified), to complete a book on voodoo, ju ju,macumba, mojo and other cult beliefs, which he believes is responsible for unsolved murders on this island wealthy land owner venis de vias warns him against stirring up the natives, especially any efforts to lessen the prestige of the reigning voodoo queen mama rata loi the arrival of wells' daughter, sara, and her husband, warren, on a honeymoon trip, starts the pot to boiling and making the natives restless most restless of all is mama rata loi, who asserts her powers and puts a spell on venus de viasa the next thing honeymooner warren knows is that he is trussed up and about to become the one chosen to die in a voodoo ceremony