Someone has broken into the Imogene Museum. Curator Meredith Morehouse finds an empty ornate frame, the still-life painting hurriedly sheared from its moorings, and calls in Sheriff Marge Stettler as she scrambles to identify the burglar. Not because his taste in art is questionable but because the thief's intimate knowledge of the museum and its collections indicates much more is at stake. Is the thief a friend or stranger? It doesn't help that the...