Judith, Suzie and Becks start an investigation. To assist with official police investigation, headed by Tanika, They must suspect witnesses, and face down real danger as they work against the clock to stop the killer in their tracks.

Retired archaeologist and crossword setter Judith Potts believes that a brutal murder has taken place in the sleepy town of Marlow; when the police refuse to believe her story, she kicks off a private investigation with two unlikely friends.