"Molly DeWitt is looking for a fresh start... Too bad trouble seems to be looking for her! When a wealthy man is found with a knife in his back - Molly's knife - she'll have to race against detective Michael O'Hara to prove her innocence." No, that's not how it works! The prosecutor must prove guilt. Why Molly is racing around like she has something to hide, or worse, to cover up, is the real mystery here, and nobody cares anyway, because it's one more in a tedious line of cookie-cutter, utterly invariant, non-mysteries.