Ronnie Campbell escapes from prison after being convicted of murder years ago. Soon after his escape, Morag Mackenzie, who testified against him in court, is found dead. Because of his past, Ronnie becomes the main suspect again.
Inspector Logan investigates the new murder and re-examines the old case. She discovers that there are doubts about the original trial and that important information may have been missed or hidden.
As she follows the clues, Logan uncovers secrets about money, lies, and false evidence. In the end, she solves both the new murder and the old case by revealing the real truth behind what really happened.