Artist Spotlight: "Behind You" One-Shot Horror Stories
In case you want some background music while you look:
Brian Coldrick
website
Behind You
Behind You: One-Shot Horror Stories - IDW Publishing
You can his book here. Behind You is an illustration series, a comic with no panels, where each piece is essentially a separate story. Each tale is one image and one piece of text; an unsuspecting victim with someone, or something, behind them. Entries range from the amusingly weird to the genuinely unsettling.