I Walked with a Zombie (1943)

Frances Dee portrays "Betsy Connell" a nurse hired to travel to a Caribbean island to care for the catatonic wife of a local plantation owner. Once there, she does her best for the poor woman as she slowly falls in love with the husband "Paul Holland" (Tom Conway). She decides she must do what she can to help her charge recover and that involves dealing with the local community and using their voodoo. The film is actually quite thought provoking; it touches on the conversation about continuing to live regardless of the quality of life and it questions the role of traditional (and often religiously ethical medical treatments) against what could be described as more pagan ones. It's eerily shot which means at times quite it can be hard to see what's going on, but is still an interesting horror film with virtually no screaming!