Betsy Connell believed she had seen strange behavior from her patients, but nothing in her training and experience has prepared her for the voodoo, horror and walking undead of a Caribbean island in I Walked with a Zombie! Who said the dead don't walk? Connell (Frances Dee) travels to the Caribbean to care for the comatose wife of plantation owner Paul Holland (Tom Conway). But as Connell starts to fall in love with Holland, she gradually realizes that her patient is not comatose: She neither lives nor dies, existing as something not quite human and not quiet demon.