Phantom Menace

From: Alex
Description: I have an awful feeling that somebody is following me all the time. I hear weird footsteps bhind me and stairs in the hall are always creaking at night. I've told Detective about this but he doesn't believe me. I'm a simple ghost after all! can you help me and check if there's someone suspicious nearby? I'll be so greateful to you.
Completed: You've found footprints and told Detective about it? He promised to start investigating as soon as he's free? You see - you're my only friend in this damned place. Take this present, I got it from the other ghosts of the City.