Mary Hartman, Mary Hartman (1976)

Season 2: Episode 80

Charlie is helpless to stop Tom from drinking. Garth tells Pat he wants her dead and doesn't care that he'll fry for it. Mary visits the bandaged accident victim and finds Martha working as a hospital "Gray Lady". Loretta promises Mac she's stringing Lou along but Lou gets angry when a diner patron points out that Loretta doesn't want him. While Loretta and Mac are making out in Mac's truck, a drunken Tom arrives at the diner and passes out. Lou puts an unconscious Tom in Loretta's bed. Pat gives Garth a taste of his own medicine, and it's fatal.