In the 1960s a nurse's last day is ruined when a doctor inadvertently creates a cyst monster that terrorizes the office.

An aging lawman is convinced a mysterious stranger arrested in his small town is innocent. His investigation stirs up a hornet's nest that will change the town forever.

Musical version of the Robert Louis Stevenson story about a doctor who conducts an experiment on himself that results in his bringing out the dark, murderous side of his inner self, "Mr. Hyde".