Saturday Matinee - Parasite

The alien parasite, it's work complete, left his transformed body and swam away to wait for it's next unsuspecting victim! On the shore where once stood Steve Gordon Park Ranger, there now lay a mindless sex-crazed bimbo!!!
Later when he was found, the rescue party had to fight off his advances as they strapped him to the stretcher! They all nervously looked at one another as they put him in the ambulance for the asylum!
Which of us is next, they wondered, which of us will be the next victim of the mystery of Sissy Lake!!!!