An alien ship encounters a strange flying object: the Voyager spacecraft. Professor Dr. Georg Friedele wants to teach the aliens about evolution on earth but the more the aliens listen the angrier they turn towards the humans.
After losing his wife, the deranged and reclusive Dr. Henry Jekyll descends into a nightmare of grief and obsession - until he takes Sharcopine, an untested drug that warps his body into a bloodthirsty man-shark. Now driven by madness and love beyond the grave, Jekyll prowls the streets, hunting anyone who threatens his twisted relationship with his long-dead bride.