a serial killer that loves cheesecake, and a plucky college - girl with a surfeit of skepticism.

Luke may have been born on Mars, but Callie's from the planet Earth.

Both live in Colorado but were adopted, Callie by a lovely Colorado couple who have no idea what kind of danger she's in.

When a copycat Colorado serial killer appears, Callie decides to help the Colorado Bureau of Investigation in the hunt for the killer, turning Callie into the villain of the piece.