Dark Shadows - Season 9 Episode 54 DS-1034 Necking in the afternoon.
Overview: After killing Sabrina, Yaeger runs back to the lab, drinks the antidote and becomes Cyrus again. Julia (PT) finds Barnabas’ coffin. Cyrus feeling bad about what he has done tells Barnabas where Maggie is then prepares to kill himself, however he changes back into Yaeger. Barnabas goes to the farmhouse where Maggie is, however she hides from him not knowing, Barnabas then leaves. Yaeger goes to Maggie and prepares to kill her.