Dark Shadows (1966)

Season 12: Episode 6

Melanie finds Stella Young tided up. Flora explains that Justin tried to kill Stella, so they had to lock her up to keep her from telling the police. Quentin and Morgan decide that the lottery must be held soon. Melanie promises Stella that she will be released if she promises not to cause any trouble. Justin’s funeral is held. Stella is found dead; Flora and Julia believe that Melanie killed her. Melanie tries to get in the cursed locked room then collapses.