Next door neighbor

I have never seen my next door neighbor (an old lady in wheelchair, as far as I know) out on the small patio. In fact I have never seen anyone there except a cleaning lady taking rugs out occasionally.

Today when I opened my door, there was a man standing and smoking there. Maija walked over but turned around quickly, stopped in front of me with a question in her eyes, and came in. There was something she didn't like.

I shouldn't read mysteries...