Something missing
(Book)

A career criminal with OCD tendencies and a savant-like genius for bringing order to his crime scenes, Martin considers himself one of the best in the business. Of course, he only takes items that will go unnoticed by the homeowners. Even though he has never met these homewoners, he's spent hours in their houses, looking through their photo albums and reading their journals. He's developed a friendship of sorts with them, and accordingly he decides to intervene though it means breaking many of his twitchy, neurotic rules.