Murder Below the Line (1970)

Small town filmmaker is haunted by a persistent killer who wishes to inspire by reeking havoc on the lives of local college students. As the body count rises and the terror spreads throughout the community, Ron Louden must combat his fear and the ever imposing threat of the maniac who has only his worst interest at heart. Thrust into the limelight of this grizzly affair Ron sees the twist and turns pile up and begin to suffocate as he is brought into the center of a police investigation delving into this strange and terrifying mystery.