Benny the Rat, who has crossed the mob, is killed and doused in an experimental serum that returns him to life as a real rat.; Merrill Dane, an escaped convict, finds a pool of green slime in the Everglades that is alive and begins to feed it other humans. When he feeds the slime other humans he can gain their abilities.; Four scientists encounter a Medusa-Ghoul in the jungle. After they kill the Medusa-Ghoul they each slowly in time become Medusa-Ghoul's themselves.; Prince Rah is in love with Tleena, daughter of the Pharaoh. When he is about to be buried alive for his forbidden love for Tleena, Tleena kills herself. The evil Tut-Kah then buries him alive with the corpse of his love. Centuries later, Tut-Kah's descendant steals the two mummies from a museum and tries to bring them back to life with electrical currents. The two reanimated lovers get revenge on Tut-Kah's descendant for what his ancestor did to them.