In 1989, Double Helix Films was set to produce the third sequel and fourth installment in the Sleepaway Camp series. Director Michael A Simpson shares his story over at that other Sleepaway Camp website. But here it is, in my own words;

Angela (Felissa Rose) auditions to play herself at Camp Arawak, now a summer stock dinner theatre. Presumed dead, a sort of cult has been formed by her followers. Feeling this idea is just morally wrong, they protest it's production. The killing starts but the audience isn't sure if it's the cult, the presumed dead Angela or a mentally disturbed girl pretending to be Angela. Simpson mentions how he thought it would be cool to put Felissa Rose's Angela butting heads with Pamela Springsteen's Angela at the film's climax.

That's basically it.