When a murder takes place in the sleepy market town of Bakerbury, the police are baffled by a crossword puzzle left on the body. With their case going nowhere, they turn reluctantly to Cora Felton, a recent arrival, whose fame as a newspaper puzzle writer suggests she can help DCI Hooper and the local police unravel the clue and solve the case. Crime drama based on the best-selling books by Parnell Hall, starring Phyllis Logan, Charlotte Hope and Adam Best