Hmmm... you put this in the composting forum. Does this have anything to do with compost? Are you by chance keeping a worm bin or something inside?
I ask because I looked your beetle up, never having heard of it. Very impressive "one of the largest ground beetles ... grows up to 1/5 inches." It seems like it would be an unusual thing to have inside, but they are attracted to decaying wood and leaves. The fall leaves in my worm bin seemed to harbor a variety of critters.
I don't know about home remedies, but it seems like it wouldn't be too hard to capture them in a jar and take them outside. In your garden they are good guys, eating gypsy moth larvae and other pests.
https://www.fcps.edu/islandcreekes/ecolo ... archer.htm
Otherwise all I can suggest is be a very observant detective and try to figure out where they are coming from.