Watch Credo (1997) Official Trailer

Mona is a young woman, engaged to a man who never shows up. She relies strongly on her supportive friend, Anne. Mona suspects that Anne's psychologist, Dr. Lark, is acting funny towards her friend, and decides to investigate. Mona and Anne will find themselves embroiled in a strange world of psychiatry and fanaticism, in which both young women's lives will be endangered.