Moira's flat
From Tardis Wiki, the free Doctor Who reference
Bill Potts lived in a flat with her foster mother, Moira.
During Christmas, Moira told Bill she had found pictures of Bill's mum on the back of the cupboard, and that she wasn't even aware they had these photos.
Later, Bill returned to her flat to hear the shower running. When she received a call from Moira, she was surprised to hear no one was staying over. Upon investigating further, she found out that the sentient oil had followed her to her flat. (TV: The Pilot)
