Thriller is an American anthology television series that aired during the 1960–61 and 1961–62 seasons on NBC. The show featured host Boris Karloff introducing a mix of self-contained, macabre weird-horror and morbid, hitchockian crime stories, in some of which he also starred.

Season 1 · Episode 30 ·
Parasite Mansion
A young teacher is lost during a storm and wakes up to find herself held prisoner in a run-down mansion inhabited by a strange and terrifying family.
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Episode 30 of season 1 of Thriller: “Parasite Mansion”. Aired 1961-04-25. Watch it online free on ZapFlix.