The Fiend (1972)

Led by a sinister minister, a controlling religious sect called the Brethren has taken control of widow Birdy Wemys, sending her unstable son, Kenny, into a spiraling descent into madness and murder. No woman is safe when Kenny’s religious mania overpowers him and leads to a rampage of carnage and chaos!
Robert Hartford-Davis, Brian Lawrence
Ann Todd, Patrick Magee, Tony Beckley, Percy Herbert, Suzanna Leigh, David Lodge, Ronald Allen, Madeleine Hinde, Jeannette Wild, Susanna East, Brenda Kempner, Hani Borelle, Diana Chappell
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