A warped Nazi scientist, sentenced to death, has an assistant dig up his body, remove his head and keep it alive in his laboratory. He makes plans for world domination.; A young woman fears that her late sister has come back from the grave to kill her.; A fish enthusiast encounters a menacing "water monster" from Atlantis when he brings home a new breed of guppies.; A nurse gets a job at an infants' home where all the babies seem just a little different.; The Nazi commander of a concentration camp is captured by the prisoners and placed in their secret torture room.