You have to retrieve a knife from a booby trapped house before the owner returns to his house.
Billed as "the first of the seven knives of eternity". Presumably additional adventures, which don't appear to have been published, would've seen you tasked with collecting the other six knives.
The Vic20 version is dated 1982.
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I find this game as a prg file dated from 1982 in this Vic20 tosec version: https://archive.org/details/Commodore_VIC20_TOSEC_2012_04_23
Filename: Colonel's House (1982)(Rabbit)[16k].zip
We would generally need some primary evidence, such as an advert, magazine mention or inlay to change the publication date for an adventure. Files themselves are often mislabelled on the Internet. Programs are also often internally dated with their date of creation rather than the date of actual publication.
I've spotted first-half of 1983 references to the Vic-20 version of Colonel's House in 2nd hand/swap adverts, so the 1982 publication date does seem possible.
The image of the cassette tape from the retailer Retro Games is clearly labelled 1982, so yes, that's definitely enough evidence to change the date. https://www.retrogames.co.uk/031779/Commodore/The-Colonels-House-by-Rabbit