Dark Shadows - Season 5 Episode 35 : DS-402 1971

Barnabas now knows for sure that Angelique is the witch that has been causing all the terrible things to happen. Barnabas tells Ben how he figured it out when he heard Angelique say the incanation and how Victoria told him that she felt a 'cold fire'...the same cold fire that Angelique had talked about in her incanation. Barnabas now plans on killing Angelique. Barnabas tries to kill Angelique at first by putting poision in her sherry. Naomi enters, and Angelique gives her the sherry. Barnabas quickly knocks over the glass so Namoi will not drink it. Angelique suspects something isn't right. Naomi came to tell Barnabas that a package. The package turns out to be a portrait of Josette duPres that had been sent to him before the events had occured. At the end of the episode, when it is nightime, Barnabas is seen creeping into Angelique's room with a knife and swoops down with the knife.