Please help find old movie. Hurts my brain to not find

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I saw a movie in 84-90 ish and need your help. It could be from the 60s, 70s or 80s.. I’m not sure.
It hurts my brain to not find it.
A nice house on the countryside. A housband, wife and 3 children. One with glasses.
The man is a big deal in the community. He does business with a woman who got jealous/became evil
and she snook into their house at night, poured gasoline all over and lit the house on fire.
The kid with the glasses was mad and he locked his door for the night, so they almost didn’t get him out. But
the father went back in for him and kicked the door open.

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