Take a thirty-something Midwestern magazine editor with an irrational fear of death and abandonment. Add a smart mouth, competition that's killing her financially, a suicide that isn't, and a murder that wasn't. Watch her stumble over enough dead bodies to fuel the dilemma of a jeweler's missing dealer, a dead man's missing wife and a missing pink diamond. But the dead aren’t who they pretend to be and the living aren’t who they want to be. That’s enough to create pandemonium in this woman’s life for 75,000 words in the character-driven mystery, The Kill Fee.
This is anorexic. Flesh it out with names of characters and a little bit more juice and I'd probably read pages. If of course I can overlook "irrational fear of death and abandonment".
You're on the right track.