To make a long story short... Aged friend of my mom thinks someone is stealing stuff from her apartment. While personally I don't believe it to be a case (more sounds like a phobia to me), I was asked if I can suggest any (cheap) video camera to keep it on while she's not in apartment. I think it's a good idea because at least (I hope) it'll prove that it's just her imagination and bring some peace to her. Plus she won't be going after innocent people.
I never used/did anything like that, so any suggestions?