Thriller - S2 E5 ''Ring Once for Death'' (1973), 1080p, US Version - Michael Jayston, Nyree Dawn Porter, Barry Nelson

The American version of this episode of the classic British thriller series "Thriller", ep. also known as "Death in Small Doses" (the American version). Recently widowed Laura Vallance returns home to England after many years living abroad. She knows few people in England, but she desires rest and seclusion in her time of grief. However, she is more alone than she bargained for when she hires Roger Masters as her butler. With small doses of poison, the ruthless butler plans to keeps his wealthy employer incapacitated... permanently. Starring Michael Jayston, Nyree Dawn Porter, Barry Nelsonm Thorley Walters, Janet Key.