妖しい
怪しい
abstract
around
away
background
blur
blurred
blurry
bokeh
brother
buildings
camera
cctv
circuit
cityscape
concepts
control
crime
danger
defocused
deterrent
electrical
equipment
flare
focus
guard
instrument
isolated
light
looking
night
nightlife
optical
order
outdoors
paranoia
privacy
private
protection
residential
safety
secrecy
security
sky
skyline
spectator
surveillance
suspicion
symbol
system
technology
television
warning
watching