A thoroughly unpleasant, gruesome, dirty, and bloody film. Frightmare comes from director Pete Walker, who also collaborated on the script with David McGillivray. The cast includes Rupert Davies, Shelia Keith, Deborah Fairfax, Paul Greenwood, and Kim Butcher. Stanley Myers composed the music, and Peter Jessop handled the cinematography. The story centers on Edmund and Dorothy Yates, released after fifteen years…