Over the last couple of weeks, I've found 5 beetles wandering about in
my house. 4 on the 2nd floor and one in the first floor bathroom,
suprisingly, none on the ground floor.

They're quite big. 1/2" in size and black. I really don't like sharing
my bed with these critters and I can't think where they might be coming
from. They can't have all flown in through the window can they?

Has anyone got any ideas of where I should be looking or what might be
attracting them?