The movie is solid in every aspect, but it's at a certain point where the flashbacks kick in that you start piecing things together. Picture this: an Alzheimer's-afflicted crime detective finds himself unravelling a decade-old case, and as time goes on, he becomes deeply involved. Everyone's a suspect, yet the lines are drawn so clearly, pointing directly to the murderer with each new piece of evidence. Motives are unveiled gradually, like in any classic mystery, but what sets this movie apart is the romantic entanglement of the obvious suspects, making it easier to identify the true culprit. They've excluded the convicted from scene one, leaving only a handful of people under scrutiny.