'The Curse of the Cat People' (1944)

Less a sequel than a follow-up, Val Lewton's spookily magical story about the fantasy world of a lonely little girl (heartbreakingly played by Ann Carter) employs characters from the first 'Cat People,' but unexpectedly veers off into directions that can only be described as sweetly creepy. The Christmas caroling sequence is one of the most evocative ever filmed.