Dark Shadows - Season 10 Episode 48 DS-1108 Necking in the afternoon.
Overview: Barnabas and Julia find that the Quentin Collins of 1840 died on this day. Sebastian has a vision in which he predicts the destruction of Collinwood this night. Sebastian drives Maggie to Windcliff to get her away from Roxanne and the impending tragedy. Barnabas and Julia hear a heart beat coming from Quentin’s portrait, and realize that Quentin must be buried alive.