''Till Death Do Us Part'

I just bought season 1 and watched this episode last night. Mac and Sally are in the attic and Mac goes down to try to turn on the stereo loudly to alert his neighbours. But the killer has cut the power cord to the stereo. While he is downstairs the killer creeps into the attic. He is wearing a gas mask. Sally is getting drowsy and the killer convinces her to lie down and just breath deeply. The killer has a gun. Mac comes back upstairs and is held at gunpoint. He talks to the killer and puts the record on the old record player that the killer left (the death march). He tells the killer that he must want to die too because if he fires his gun the gas will blow the house up. Mac then grabs the statue that Sally used to prop open the lid of the old stereo (they joked about it as being their worst wedding present)and hits the killer with it and knocks him out. He grabs the gun and the gas mask and puts it on Sally to revive her. Despite Sally yelling that they will be blown up, Mac fires the gun 6 times and alerts the workmen that they are there. He tells Sally basically that the story about the house blowing up with the gas was a lie. They get out. Its never explained how the killer got into the house, but we have to assume it was while they were drugged.

I'd like to know if Susan St James was really pregnant in that episode as there was no mention of it in the previous episode?

I've just watched this episode on DVD, and I think I remember it vaguely as well. One thing still stands out - I'm reading that the show was on a low budget and that may explain. I guess they didn't have a technical advisor to review the script or be on set. Did anyone question - Sally makes a remark that "I know gas is heavier than air." Just a flub maybe. This is supposed to explain why they go to the attic.

Actually really wrong - volatile pesticides are lighter than air, just like most toxic gases. The safe air would be low, not high. That's the reason they inject the pesticide at the bottom of a house - so it will cover the low areas before it rises naturally. We are all taught to crawl low during a fire to escape, as the breathable air will be near the floor. They went to the attic simply because it has not been filled yet. They should have gone to the basement - I remember some reference to a basement in the new house.