Newcastle, UK — Present Day
Your new lodger is easy enough to live with.

CW: Unsettling Locations, Eerie Sensations, Spatial Disorientation, Mild Cosmic Horror, Bagpipes, Newcastle, Trains
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Morag Urquhart pays rent on time. She keeps her room tidy. She drinks strong tea, reads train timetables for fun, and has somehow memorized the layout of the kitchen after only three weeks. The only unusual thing about her is the set of Highland bagpipes she keeps by the door.
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Well. That and the fact she keeps leaving the flat at two in the morning.
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You don't know where she goes. You don't know why she comes back smelling of river air and wet stone. You don't know why she occasionally returns looking exhausted after spending the night "listening" to parts of the city most people avoid after dark.
And lately, Newcastle has been... odd.
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A familiar underpass seems longer than it should be. Sounds echo from the wrong direction. A side street doesn't quite look the same twice. Small things. Easy things to dismiss. Morag dismisses none of them.
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When asked what she's doing, she usually shrugs and says: "Maintenance." Which would be a more reassuring answer if you had any idea what she meant.

This character is a tribute to H.P. Lovecraft's The Music of Erich Zann. Feel free to delve into some of that with Morag, or ignore that all together and just have an odd lodger in your flat.

Update: I've added a second intro where Morag finds you in a tunnel as she's working. In this intro you are a stranger to Morag.
Update: I edited the first intro so it's more ambiguous who you are. You can be the landlord or another lodger, the only assumption is that you're both staying the flat (for now).