Hello... I was wondering if someone would be able to help identify these little beetle dudes? We keep finding them crawling up walls in the communal entrance to our flat and I was wondering what they are. They could be a common house beetle but am not sure as my bug knowledge isn't tip-top. The pics I have taken show a beetle that is a littlew more rust/brown coloured than the others. Other are usually just black/grey.
Any information greatly appreciated