In a large-scale plot known as "Operation Freakout," the Church used harassment and entrapment to try to get journalist Paulette Cooper, who had written a popular anti-Scientology book, "incarcerated in a mental institution or jail".
Another plaintiff, Chrissie Carnell Bixler, was formerly part of the Church - but other members began chasing her in her car, filming her without permission and harassing her online.
"These brave survivors deserve justice and to be treated with respect and dignity.
"What they have had to suffer is simply unacceptable." The Church of Scientology's litigation council, however, denied the allegations, telling Fox News: "From everything we have read in the press, this baseless lawsuit will go nowhere because the claims are ludicrous and a sham.
The women claim they were targeted in a "silence and intimidate" campaign by the Church after making their allegations against the actor public.
One of the accusers, his former ex-girlfriend Marie Bobette Riales, said members from the Church of Scientology have been stalking her since she contacted the police about Masterson.
Coupled with the need of many people for drama in their lives, the crime of Intimidation (Intimidating) a Witness or Victim if easy to come by.