This is definitely one of the classic episodes of this much-loved TV series - one which everyone remembers from that fateful Saturday night back in the autumn of 1980.
William (played by 'Hazell' actor Nicholas Ball), Emma (the very lovely Rachel Davis), and their daughter Sophie (played by 80s 'wild child' Emma Ridley) move into a rather ordinary (but dilapidated) semi in the suburbs, hoping to make a happy home and a new start.
But, this particular house has a grisly and bloody history that seems to be reliving itself - and the family soon fall foul to a series of unfortunate events that make their dream home more of a house of horrors...
This episode plays out nicely, with the viewer never quite sure what's really going on and why until very near the end.
The ordinariness of the prosaic 1930s semi makes for an uneasy setting for the horrors to slowly unfold - as if this could be anyone's house.
Young Emma Ridley should get some credit too as Sophie, who seems to always be the victim of the gruesome and disturbing horrors the house unleashes, and whose feelings her parents seem to overlook.
A clever and unexpected ending too, which ties things up nicely - but did leave me a bit confused (as a child) back in 1980 I have to admit!
This is one of the definitive episodes of this short-lived series that is a favorite with fans, and very hard to forget - just beware the next time you check your fridge!