What stir fry said.
It all depends on how your house is wired. In my case I have 2 floors and they are on desperate breakers. I wouldn't be able to have an adapter downstairs and one upstairs. In most cases the kitchen is on its own breaker, laundry room, garage. If you are trying to run an adapter from your living room to a bed room, it may be possible it won't work. Figure out what outlets you want to use the adapter first, turn on the lights in those rooms, if you turn off a breaker and both of the outlets shut off then you're good to go. If only one shuts off then they're on different breakers and it won't work.
